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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 lawfrsmm4 22dy5kayfbn(o r du;)-.1:bm 1vztra 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 thew,+kl0;na fm x bottom, is rigidly attached to a wall at the left. (See Fig. 13-xn;0k flmwa, +1.) The coefficient of linear thermal 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 y1 0)k9/cuz 3 bh)y1sa p tr9y o;srr/lxn8prayour car heats up, the spark plug gap will

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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 through its center as shown in8+eyf7befdi 07m1 dpl ee6/r o Fig. 13-2. Wp6b ri7fd1d7elm8/+ee ye0fohen the plate's temperature 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 expansion for alumrgrhkgq6g 436 inum 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 large66j9/i 6bi fif 15ekqkfqo kz), deep lake is $3 \; ^{\circ}C$. 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 temp bm e1,i6-py9uduo68 r(aajn oeratures?

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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 are equivalee2mp5do da,p0 nt?

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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 d1mav2qzk q3.-8luj1s*s jjs classroom 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. b7ehkji5o(mia8 d0d6
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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 j v4)i7pqbl2s.
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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 gasy:18 dc7w4( gulkaza3atu vw4 at 1 atm is compressed to one-third its volume, with th 8zla c4(utaav: 1kwuw 3yg4d7e 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 gas at constant temperature isw xq-zpgq +v8h ckn2p491ff:k tripled, its volzg14 9w:pn+f8qv2k qcphkfx - ume is

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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 Laq6: sraeez p l1e5;cl,jyv- a/w, PV = constant for a given temperature. As a result, an increase in volume corresponds to a decrease ilvcl psa z1qe a; 6r,/5ey-:ejn 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 molecui9nlw (v),qiesja 8l5les in one mole 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 gas at a given temperaturedj2u9uk3.t 8 cxo w4rw+pt anq* a7x)x. If the number of molecules in the con2 tw+x3 o9qxw8kx naa*uu.p 4drc7tj)tainer is increased to 2N with 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 and volume of a given d2ewu d -mne6;yr1i7i sample of an ideal gas double. This means that its temperature in K7we dur2 e16i;mndi-y elvin 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 increases from l )p6o8v5 ottq bhduuof1 m5/,$2 \; ^{\circ}C$ 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 oxyg+bswka u7u-- jnom- u5upd:+nen molecules and a mole of diatomic nitrogen molecules at S+-wu somjuanub+ nkp7-:d- u5 TP 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;n htp/ffgvcw)p l,v ef:w-h5 mp4f-4 at a given temperature and pressure. One gas, oxygen, has a molecular mass of 32. The other gas, nitrogen, has a molecular mass of 28. What is the ratio of the number of oxygen mol-; 4f ,5ephmv 4f:vlcfn)-gtw p/pwfhecules 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 b6wim. w: c yy.)tneqy0y knowing 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 is slowly compressed to one-half its original volume wiqe0 mpwl,i3l k7me9e :th no changikw: el,ee30 qplm9m 7e in temperature. What happens 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 ga 7brznafp3, /9k;de p dflp6p.s is heated and its Kelvin temperature doubles. What happens todf7zebp k6p ; rp9p,/.fn3ld a the 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 i3+6p8el 9orzanc w9 o)8df(xe p/gxjpdeal gas is directly proportional to which of the followp j63opx8(w9 ez xln9aog8df)r /c pe+ing?

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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 fylrr2yv1y 69r*s eitgx- 6a4 speed of the molecules in a given sample of gas, the temperati16ag tyyr-r6slfv*y9 xre2 4ure (measured in Kelvin) must

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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 thetr s0k 28z:oy*bam+h an hydrogen molecules. At a given temperature, the average molecular kin*+mhre 2 :0o8z bkyastetic energy of oxygen, compared to hydrogen

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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 than hydrogen molecules. A-q jyb ak:/8fjt a given tempe8f a-kjy bq/j:rature, 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 the same temkms;7 o6)qcw fperature. Which one of the following statements;qsk fwm6 7o)c is 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 gase jmt i++ ry;63ol+ h) rugrxj0:(faucns. A thermometer in the container ily+at u+r(+;urrm:c6nj3 fxi)0h gjondicates 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 oxygen gases. A thermome3 tq: z1theyax. ,p7r ptk+rdm 7r3e6iter in3xez7p.tmk ,1r arye dh3t: 6trqi+p 7 the container indicates 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 exz:s)3ml y*fawf7+wj mo5z,g q ist 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 in,*0diy4tvw d by/g j+u 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 temperaturelt,ek+ *,r kpl w 5ijeyl+i0o1 ($98.6 \; ^{\circ}F$) 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 s 2f i*hly;zzto5)u5a2n: xthfrom 35eF 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 of dnj4 fzf+8zt )$20 \; ^{\circ}C$ 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 the numer05nymeg- x/ 6;lwjv tmical readings on the Fahrenheit and Celsius scales the samvmw ej g;t/-0mnx5ly6e?

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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 aak. x kiwg(ruje :v*ho*67, jdt $-20 \; ^{\circ}C$ 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 longprq u::iyo7h.dgq.w:2s w qc0 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 the temperature dro)/ hwa13zjah 1qd e3dgps from1a)azde dqj/ 331ghwh $24 \; ^{\circ}C$ 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 di2mkt 2*;g9iy+ixv zejameter of 1.200 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 pie hlvkn9l6hd0zp+ , n6vce of 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 arouq:cdlu4w m 0u*nd 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 *5 sh-6x)mztq ;f gg hs3;/pj9esedqvgasoline 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 rioaj h 3yj0 dye*r1/o4xm at a temperature 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 from ss aw2f7.,uwl$4.0 \; cm^{3}$ 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 has a bulb ofoy5/;;xy: qydw6u pkb 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 temperature, ief).yi1 :ngyrn degrees Fahrenheit, does this correspond y yfner1 :gi.)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 400 kPa. Find t9nkr5g99xxl ahe absolute pressure if the volume changes to 850 L and the temperature rem9ax9gr5nlx k9ains 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 perfect gas are at7 eqzaduq,o g3;j(e7p $0 \; ^{\circ}C$ 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 are ak z.bj-z 6-lzm *dfr*bt $0 \; ^{\circ}C$ 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 gasb-d b 00q.gz6bz rjjsahjh(5ib / p3h1 are 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 g1 (.7)ayz 0 rqddq3b*g wpxsth of water? Express your answer as a multiple of Avogadro's7 byxh*d(30 qp1.rzga wdq)st number NA. (The molecular 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 2.00e(e:+m -antvk kg of copper? (The atomic weight of copper is 63.5 and its specific gra mank:tee(v-+vity 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 ixxlxli )a8d2.n) -tj0 k uk4pkdeal gas occupies 33.6 L under standard conditions. How many 8j 2 t)u0p)xkdaklnxx.ikl 4-mol 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 atm, a volume of y 7,pgphvn;3q 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 container obq)k 7z,3nnrul5unb9 f 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 STP. What is the mass qe h0w 1ljt5d ou1se;0of the sample? hw tde;q1e lu15jso00

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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 0pyc3gy2hlhhx 5 ;b ) g,bl.uq0.25 atm and a temperature ouhb 3p lhh25cy0.g)lgq ,y;xbf $0 \; ^{\circ}C$. 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 q;yel x:j(:7 l efa5mw$600 \; cm^{3}$ 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 gb iqvmux:qv 7 9*q 9)n5:3xhaavc bw9uas 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 at 71agv j/cb8+0sef btl$20 \; ^{\circ}C$. 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 su i i )1e7xm0 op5*5-jusyh6p gcyn86p m1lqyof $1.0 \; m^{3}$. 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 carbon dioxidzz6z2 *e0prjmj/ 4bode ($CO_2$) 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 densj (koem637*wkgiog - xity 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 volume h-:gbibgiy+eh 2c,7q b( fx8-j7soodi p2p/lof $0.20 \; m^{3}$, 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 contains 15 g h f:d0zin-utsgz 8n((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 separa 4.xkg5ma un6 s(kc(lhtion between air molecules 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 is the average kineti)tlhi)zsgd sf8bp g0;gf*u ) hdx;.ww 6g2o 1uc energy of an atom in helium gas equal il0zduhfg*6 1;spdg )t8bxgswoug2; fw. ))h to $6.21 \times
10^{-21} \; J$?

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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 the0f-wbwalm lnk8) o27 y 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. How muc ,6mbxh 4.lgwjh energy is needed to raise the temperature of this,4g.b mwj6 lhx 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 gas is increased frob4ctki ex8u0(c3 j -mim $20 \; ^{\circ}C$ 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 speed of 500 m/s8xdpqys( ub :/m4wl/ c.dctbrn-j3 :l 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 molecules is 32, o.-1fyq0 hyxfand the molecular mass of nitrogen molecules is 28. If these two gases are atoh.fx0 yyqf1 - the same 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 than that of hydrogen. If tht.v*k/ve+6x ,lkboex ny b7(ze aam*:e molecules in these two gases have the same rms speed, the ratio of hydrogen's absolute temperature to tz*neeotl.bx :yae6/bv+*k (mx 7v a,khat of nitrogen is .

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