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习题练习：Physics Unit13: Temperature and Kinetic Theory
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 作者: admin    总分: 86分  得分: _____________

答题人: 匿名未登录  开始时间: 22年08月07日 11:04  切换到: 整卷模式

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1#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State the zeroth law v/oemo r/yl*/of thermodynamics.
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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A bimetallic strip, consisting of metal G on the top and metal H on the bottomkh*rpkph0 q/ nh32(ch)mbs -d, is rigidly attached to a wall at the left. (See Fig. 13-1.) The coefficient of linear thermanpk)s3 -m h0 (k/qbh*r dhhc2pl expansion for metal G is greater than that of metal H. If the strip is uniformly heated, it will


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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When the engine of your car heats up, the spark plug gap wec-v2*l -k ts)wi)shy(sf0mx ill

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider a flat steel plate with a hole throq n xb2xbc,g30lh 7u+uugh its center as shown in Fig. 13-2. When the plate's temperatx0x2b+7lgc,uq 3ubhn ure is increased, the hole will


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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The coefficient of linear qz;0, 1s7ls/ pxm wfupexpansion for aluminum is $1.8 \times 10^{-6} \; ^{\circ}C^{-1}$. What is its coefficient of volume expansion?

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The surface water temperature on a large, deep lake is*6qmk 7cdeu xoxi6to *psw35: $3 \; ^{\circ}C$. A sensitive temperature probe is lowered several meters into the lake. What temperature will the probe record?

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which temperature scale never gives negative temmt8 baqle8-1aperatures?

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which two temperature changes arercmkar 3 4o 9:6 86bubq2rj2fgmftabu( lsd/8 equivalent?

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The temperature in your x/pg+j 4 lrlvkum*2).h7nfzmclassroom is approximately

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10#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State Boyle's law.
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11#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State Charles's law. u+./vr vxrzn +qa7i7esj*dqhj6,ai 6
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12#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State Gay-Lassac's law)l hsskkp5a abmu(jk;2d0 ;s a*xqn27.
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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A container of an ideal gas at 1 atm is compressed to ohnj0 z,lcwug/q(* av; bq)l ,pne-third its volume, with thecq), vq* u(l/,;lwnap bjzh 0g temperature held constant. What is its final pressure?

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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the pressure acting on an ideal g+)9hhmxxg vv1 as at constant temperature is tripled, its volume is9xm + hhgvxv)1

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  According to the ideal gas Law, PV = constant for a given tempel7gh;h0tqhq yv16.k,a / auiprature. As a result, an increashk.yqtg ia6l70;/qh ,au pvh1e in volume corresponds to a decrease in pressure. This happens because the molecules

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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The number of molecules in one mole v1ls ju*74go0ate h8x of a substance

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A container holds N molecules of an ideal h;1g ,sdbh y5a7zr: lagas at a given temperature. If the number of molecules in the container is increased to 2N wry1 g;lzas5:hh ,d7baith no change in temperature or volume, the pressure in the container

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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Both the pressure and8vek 9v +cue tq6(gx;g volume of a given sample of an ideal gas double. This means that its temperatu+xkg6g vece uvt(;9 q8re in Kelvin must

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The temperature of an ideal gas 3nkn g: xpp3 pvnu*s b2*a..udincreases from $2 \; ^{\circ}C$ to $4 \; ^{\circ}C$ while remaining at constant pressure. What happens to the volume of the gas?

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mole of diatomic oxygen molecules anwdru;4jx2 a3au a2f5 kyj.*k ad a mole of diatomic nitrogen molecules at STPkr2ak345u2 ;fy aaa .uxjj*dw have

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider two equal volumes of gas at a given temperature and pressure. enftw 5;aqb h h3*(p/jOne gas, oxygen, has a molecular mass of 32. The other gas, nitrogen, has a molecular mass of 28. Whaaebn(p*hh5 fj3t /; qwt is the ratio of the number of oxygen molecules to the number of nitrogen molecules?

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The average molecular kinetic energy of a gas can be determined by knowin1 fgrx+q6zjk8g only

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A sample of an ideal gas is9 .7ni arx3tvphq.79 hmpyid1zoxy6 3 slowly compressed to one-half its original volume with no change in temperature. What happen.inpt7hv93z9dpx1o.q x ri6ay7hm 3y s to the average speed of the molecules in the sample?

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A sample of an ideal gas is heated and its Kelvin temperature doublesu 2;,id k.npbs. What happens to thedi.s2u, k pnb; average speed of the molecules in the sample?

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The absolute temperature of an ideal gas is directly proposjp8,, 9/a3rwvdq gulrtional to which of the follqvj 9awrds,gp,lu 3 8/owing?

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In order to double the average speed of the molecules in a given sample of gagu*ylj . :(f izk ry3nhp9q49dbt,cn+ s, the temperature (measured in Kelvin) mustg,nzyrk+i . lyj4qt9*df (h c b:u9pn3

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Oxygen molecules are 16 times more massive than hydrogen m i)j ;vrd /5dhrfmx.25xa+td eolecules. At a given temperature, the average molecular kinetic energy of oxygen, compared to hydve) dahri/r5fjd d+x5;t.2m xrogen

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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Oxygen molecules are 16 times more massive tqnu5um-(,8 o vlkngo0 han hydrogen molecules. At a given tempo ,(unoqg50k l-um nv8erature, how do their average molecular speeds compare? The oxygen molecules are moving

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A fixed container holds oxygen and helium gases at cchv+htw70afpp-kvdz t ,-1 o9 l8ay)the same temperature. Which one of the following statements is10l -h7wpz9ayv h p fccat+,vo-d8)kt correct?

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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A container is filled with a mixture of helium and oxygen gases. A thermometerhn(+ie4q;frab j8vy xeopm;qil+ ; 24 in+npoj ;(;v qx2f+imee4l i8r;qy h b4a the container indicates that the temperature is $22 \; ^{\circ}C$. Which gas molecules have the greater average kinetic energy?

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A container is filled with a mixture of helium and /+0vnsm)vw b woxygen gases. A thermometer in the container indicavn) w+vs/ mw0btes that the temperature is $22 \; ^{\circ}C$. Which gas molecules have the greater average speed?

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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The three phases of matter can eocp(vg;abp; . xist together in equilibrium at the

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Supersaturation occurs l .0r3t1 + s ueci v;v.x,hikx1ch6f7dffo 2mein air when the

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Express your body temperature p gtzb:y35rk 39,eeea4t hiu7g ;qma9($98.6 \; ^{\circ}F$) in Celsius degrees.

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35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Express $68 \; ^{\circ}F$ in $^{\circ}C$.

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36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Express $-40 \; ^{\circ}C$ in $^{\circ}F$.

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The temperature changes from 35m)kxz)*rs 9x8yblmi9g+ oto3 eF during the night to $75 \; ^{\circ}F$ during the day. What is the temperature change on the Celsius scale?

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A temperature change acy bmez )8:-h5s7u9nrm0oe gof $20 \; ^{\circ}C$ corresponds to a temperature change of

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39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  At what temperature are thevox(aycizy9,- km42-ij 1 lbr numerical readings on the Fahrenheit and Celsius scales c r j- va9 izi1yx(ko4l2mb,y-the same?

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A steel bridge is 1000 m long atnbwq:p k(1toi0d27- d1x:n ghb l0rqb $-20 \; ^{\circ}C$ in winter. What is the change in length when the temperature rises to $40 \; ^{\circ}C$ in summer? (The average coefficient of linear expansion of steel is $11 \times 10^{-6} \; ^{\circ}C^{-1}$)

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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An aluminum rod 17.4 cm lon8mmes z50eg2 ee:my(hg at $20 \; ^{\circ}C$ is heated to $100 \; ^{\circ}C$. What is its new length? Aluminum has a linear expansion coefficient of $25 \times 10^{-6} \; ^{\circ}C^{-1}$.

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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  By how much will a slab of concrete 18 m long contract when ut-vcschcv 7(p 2s: +3qk;ua0gz6blwthe temperature drops fg;qwhcsb k z+- 3s:7v(6t02c luvupac rom $24 \; ^{\circ}C$ to -$16 \; ^{\circ}C$? (The coefficient of linear thermal expansion for concrete is $10^{-5} \; ^{\circ}C^{-1}$)

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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A bolt hole in a brass plate has a diameter of 1.23 /, wo;muscdt00 cm at $20 \; ^{\circ}C$. What is the diameter of the hole when the plate is heated to $220 \; ^{\circ}C$? (The coefficient of linear thermal expansion for brass is $19 \times 10^{-6} \; ^{\circ}C^{-1}$)

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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  20.00 cm of space is available. How long a piece okld4+jv w 9p.qf brass at $20 \; ^{\circ}C$ can be put there and still fit at $200 ^{\circ}C$? Brass has a linear expansion coefficient of $19 \times 10^{-6} \; ^{\circ}C^{-1}$.

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45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 5.0-cm diameter steel shaft has 0.10 mm clearance all am :)t deee;)oqround its bushing at $20 \; ^{\circ}C$. If the bushing temperature remains constant, at what temperature will the shaft begin to bind? Steel has a linear expansion coefficient of $12 \times 10^{-6} \; ^{\circ}C^{-1}$.

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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  $400 \; cm^{3}$ of mercury at $0 \; ^{\circ}C$ will expand to what volume at $50 \; ^{\circ}C$? Mercury has a volume expansion coefficient of $180 \times 10^{-6} \; ^{\circ}C^{-1}$.

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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  1 L of water at $20 \; ^{\circ}C$ will occupy what volume at $80 \; ^{\circ}C$? Water has a volume expansion coefficient of $210 \times 10^{-6} \; ^{\circ}C^{-1}$.

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The volume coefficient of thermal expansion for gasoliner3,o pq 0kt u;1tl0obx is $950 \times 10^{-6} \; ^{\circ}C^{-1}$. By how much does the volume of 1.0 L of gasoline change when the temperature rises from $20 \; ^{\circ}C$ to $40 \; ^{\circ}C$?

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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 500-mL glass beaker of water is filled to the rim at a temperature d,yeh+639 m)gcsgpak,i7ngm of $0 \; ^{\circ}C$. How much water will overflow if the water is heated to a temperature of $95 \; ^{\circ}C$? (Ignore the expansion of the glass and the coefficient of volume expansion of water is $2.1 \times 10^{-4} \; ^{\circ}C^{-1}$.)

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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For mercury to expand lc;4kj0. 4u la/ npzkmfrom $4.0 \; cm^{3}$ to $4.1 \; cm^{3}$, what change in temperature is necessary? Mercury has a volume expansion coefficient of $180 \times 10^{-6} \; ^{\circ}C^{-1}$.

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51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mercury thermometer q ,-dmh*j 03bxk gskb*has a bulb of volume 0.100 $cm^{3}$ at $10 ^{\circ}C$. The capillary tube above the bulb has a cross-sectional area of 0.012 $mm^{2}$. The volume thermal expansion coefficient of mercury is $1.8 \times 10^{-4} \; ^{\circ}C^{-1}$. How much will the mercury rise when the temperature rises by $30 \; ^{\circ}C$?

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52#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Convert $14 \; ^{\circ}C$ to $^{\circ}K$.

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53#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Convert $14 \; ^{\circ}F$ to $^{\circ}K$.

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54#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Convert $14 \; ^{\circ}K$ to $^{\circ}C$.

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55#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Convert $14 \; ^{\circ}K$ to $^{\circ}F$.

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56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Oxygen condenses into a liquid at approximately 90 K. What temperatureati7/- zuq/d3oa0bhpct my: h0 2v;ee, in degrees Fahrenhei/h ta2ty-h3pv 7;0q/ doe ma0iez:ucbt, does this correspond to?

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57#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An ideal gas occupies 300 L at an absolute pressure of wcktn kr7wkv60.r7dpq2q3 / t 400 kPa. Find the absolute pressure if tww07 qdr6pnv.k /73t tr2qkkche volume changes to 850 L and the temperature remains constant.

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58#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two liters of a perfech9g1 +7(7mbgqs ud jzzt gas are at $0 \; ^{\circ}C$ and 1 atm. If the gas is nitrogen, $N_2$, determine the number of moles.

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59#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two liters of a perfect gas ax tpfhga0uk :,l*fu8 (re at $0 \; ^{\circ}C$ and 1 atm. If the gas is nitrogen, $N_2$, determine the number of molecules.

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60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two liters of a perfect gas nj 1lqbn fx3op 19vt*(. hb1xvare at $0 \; ^{\circ}C$ and 1 atm. If the gas is nitrogen, $N_2$, determine the mass of the gas.

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61#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How many water molecules are there in 36 g of water? Express your answer astg;pm l)10/e6+ 3sdk blyrtds a multiple of Avogadro's number NA. (The moleckpb r/0lsmyget) 3s+ t1l;dd 6ular structure of a water molecule is $H_2 O$.)

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62#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How many mol are there in 2.00g g3 )d7yn kd*at1-mna kg of copper? (The atomic weight of copper is 63gd1gamn) yt-k 7*nd3a.5 and its specific gravity is 8.90)

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63#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A sample of a diatomic ideal gas occupies 33.7r/b bkz zm5/eu - li c.ea6jgk0tae+66 L under standard conditions. How many ci/k+j 5l67- eamr/ktba0 ue.zbgz 6emol of gas are in the sample?

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64#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An ideal gas has a pressure of 2.5 a65 tpnd pgz.b l8:kk-utm, a volume of 1.0 L at a temperature of $30 \; ^{\circ}C$. How many molecules are there in the gas?

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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An ideal gas in a containersi7u7 b 9,dfmqm +xr3v of volume $100 cm^{3}$ at $20 \; ^{\circ}C$ has a pressure of $100 \; N/m^2$. Determine the number of gas molecules in the container.

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66#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A sample of helium (He) occupies 44.8 L at STPjby v;n fmn0v1k+-sm+. What is the mass of the sample?m- +;1svk0njvmy +nb f

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67#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 25-L container holds hydrogen gas at a gauge pressure of 0.25 atm op9 gq r7+2frjebb 1l/and a tempera1blr/f7 pejb+2orq9 g ture of $0 \; ^{\circ}C$. What mass of hydrogen is in this container?

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68#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A $100-cm^{3}$ container has 4 g of ideal gas in it at 250 kPa. If the volume is changed to $50 \; cm^{3}$ and the temperature remains constant, what is its new density?

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69#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An ideal gas occupies 2by 1vw)bc41vdc)qg x $600 \; cm^{3}$ at $20 \; ^{\circ}C$. At what temperature will it occupy $1200 \; cm^{3}$ if the pressure remains constant?

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70#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A constant pressure gaj ; sf.s8ib;zij )zf*rs thermometer is initially at $28 \; ^{\circ}C$. If the volume of gas increases by 10%, what is the final Celsius temperature?

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71#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An ideal gas occupies 4.0 L a mw1utl.l. 1bkt $20 \; ^{\circ}C$. What volume will it occupy at $40 \; ^{\circ}C$ if the pressure remains constant?

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72#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A balloon has a volume +5dcef(1o 1qa bq,bqbg m;z,xof $1.0 \; m^{3}$. As it rises in the Earth's atmosphere, its volume expands. What will be its new volume if its original temperature and pressure are $20 \; ^{\circ}C$ and 1.0 atm, and its final temperature and pressure are -$40 ^{\circ}C$ and 0.10 atm?

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73#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A given sample of carb1e55-uo qxa8j9 xgsdm) 0yumglul 0+don dioxide ($CO_2$) contains $3.01 \times 10^{23} \; molecules$ at STP. What volume does this sample occupy?

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74#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  $500 \; cm^{3}$ of ideal gas at $40 \; ^{\circ}C$ and 200 kPa (absolute) is compressed to $250 \; cm^{3}$ and cooled to $20 \; ^{\circ}C$

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75#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  $1500 \; cm^{3}$ of ideal gas at STP is cooled to -$20 \; ^{\circ}C$ and put into a $1000 \; cm^{3}$ container. What is the final gauge pressure?

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76#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An ideal gas has a densz./xe. hy s/1si 1efz-fs8fil ity of $1.75 \; kg/m^{3}$ at a gauge pressure of 160 kPa. What must be the gauge pressure if a density of $1.0 \; kg/m^{3}$ is desired at the same temperature?

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77#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An ideal gas has a volu8 jq+b:7ui ue.o1cyblqo50vt ftqx 7- me of $0.20 \; m^{3}$, a temperature of $30 \; ^{\circ}C$, and a pressure of 1.0 atm. It is heated to $60 \; ^{\circ}C$ and compressed to a volume of $0.15 \; m^{3}$. What is the new pressure?

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78#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mixture of gases c9h 2t/l3q7bagi1o-eqn ;s /vahl i8 alontains 15 g of $H_2$, 14 g of $N_2$, and 44 g of $CO_2$. The mixture is in a 40 L sealed container which is at $20 \; ^{\circ}C$. What is the pressure in the container?

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79#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the average separation between air mole)lj3os9y+v7rut k r ,goi*(vucules at STP?

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80#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  At what temperature u .zvnv3pcs3-is the average kinetic energy of an atom in helium gas equal to sc.zvn 33p-u v$6.21 \times
10^{-21} \; J$?

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81#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  At what temperature would th //o;wf voh;vy3*nm ije rms speed of $H_2$ molecules equal 11,200 m/s (the Earth's escape speed)?

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82#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A cylinder contains 16 g of helium gas at STP. q9 /q( wif5pdmHow much energy is needed to raise the (5df q imp9w/qtemperature of this gas to $20 \; ^{\circ}C$?

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83#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the temperature of a ga9bp v.oyu ,g/g;vvogg6 ;o+ y.a2hayos is increased from $20 \; ^{\circ}C$ to $40 \; ^{\circ}C$, by what factor does the speed of the molecules increase?

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84#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A molecule has a speedf6cp1q:f(yf4 tu fsq( of 500 m/s at $20 \; ^{\circ}C$. What is its speed at $80 \; ^{\circ}C$?

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85#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The molecular mass of oxygen e 9 6k xiynuj2x 1xa*x56-eukkmolecules is 32, and the molecular mass of nitrogen molecules is 28. If these two gases are at the sa5euixn *yjx-x1xa k 9u6ek62 kme temperature, the ratio of nitrogen's rms speed to that of oxygen is .

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86#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The molecular mass of nitrogen is 14 times greater tha1wgp 6rjao +3+jbh)s ihh27qen that of hydrogen. If the molecules in these two gases have the same rms speed, the ratio of hydrogen's absolute temperature to that ofaihr371jj6o q2)s hhwp bge++ nitrogen is .

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