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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(p 3x3+jzdm -h7/jz5qp qxinr 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 q*pe9 )h+ol yhtop and metal H on the bottom, is rigidly attached to a wall at the left. (See Fig. 13-1.) The coefficient of linear thermal expansion for metal G is greater than that of h+p yqo*he)9lmetal 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 hegechi ,90)cibq )t5 uoats 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 in Fig; qfgv,j,;6jdk5f 7caars i2o. 13-2. When the plate's temperature is increased, the hole will a ca7orjf vd,5sj 6i 2gk;qf,;


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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 aluminum is v0 wu)*iyy8f .b wpg (8v;gi s:;nrjhxro(jb4$1.8 \times 10^{-6} \; ^{\circ}C^{-1}$. 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*lh grcv1zf r)t9w m3rk j3(j) on a large, 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 sca8 1e5 kv9moofjle never gives negative temperatures?

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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 equivalen*57-nw8u,jv kykg onvt?

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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 classroom iso z-x:ok*xl cej05 u1w 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., ab +:hvh(hy 6aqr .uia1nd)n
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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 l r e-voo7+hw4caw.
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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 one-third its tu)f.okz+q) 9 j:vazn volume, with the temperature held .)tz vnjazo)q f: k9u+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 5b*c4z hw,rwi (iyb *mat constant temperature is tripled, its vo5wi4*iz ybrcm(b h*w,lume 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 Law, PV = constant for a given temperature. As 21 kbdk,so:sv a result, an increase in volume corresponds to a decrease in pressure. This happens b vkks2:d1s, obecause 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 onem4ed*6u+ c2yrlwd ql. 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 i ya b+.qedk:yt+rz,7ldeal gas at a given temperature. If the number of molecules in the container is increased to 2N with no change i +k.,ra deqby+l y:tz7n 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 volu**f glq)*ww5.kwzf rvme of a given sample of an ideal gas double. This means that its tempekzlw)5* *qw.r*v fwgf rature 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 z22dnx(ddl5t ak9e+ bincreases 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 moletwqd0h5ok308ra - ot;avpo( qcules and a mole of diatomic nitrogen molecules at STP ht oopd- va a500;hrq8t(qk3o wave

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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 temp 6c +onbb28u/qjywuj2 v1re(ferature and pressure. One gas, oxygen, has a molecular mass of 32. j/2o2(wcb bq vyrej8 un6 u+f1The other gas, nitrogen, has a molecular mass of 28. What 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 cam6pry1l3*xn ud6d r/xn be determined by 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 vg a f9cejnyczj2:gk 7(v/ .3wyolume with no change in temperature. What happens to the average speed of the molecules in the sgg ywa/z.c jeny7k:3j9c2f v(ample?

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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 temperaturad /54z/kxd(ux - iq;4k xixdue doubles. What happens to the average speed ik 4 dku/ -xd4x ;uaq5xzi/xd(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 idealw 7/4n(4ar rdt crc/o1oj6wng gas is directly proportional to which of the followiccn/4o n rjw1r a4g/to (rd67wng?

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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 mk5izc/l x5q6the molecules in a given sample of gas, the temperatur c5 6zm/liq5xke (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 than hydrogen molecules. 5**w1no1 nvtnxmn2 itw - fsl+ At a given temperature, the average molecula2v15 xt1w -*mwft+nnn in* oslr kinetic 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 ti1io4aw 0e3d8wb vqs* lmes more massive than hydrogen molecules. At a given temperature, how do their average molecular speeds compare? The oxygen molecuqv0s8 o eiwald4 b13*wles 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 temperat9,r+j w nfo1pnure. Which one of the following s,+opnfjr w9n 1tatements 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 oxyg0 qazqr pfoubqy.x4iiu3 /3n/t: c4;hen gases. A thermometer in the container indicat3 bu:/nt40frp.3c a q qoi;zx4h /yiuqes 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 :kiv 7;wtd4v9i m-jb wa mixture of helium and oxygen gases. A thermometer in the container indicates that the temperature is 9w;t47 w:k mj b-dvivi$22 \; ^{\circ}C$. 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 exist togethoia0 8vnrp,;ykdp8lv w:p )u 6er 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 occurse 9r4 dzq/mmmg+ q/+/lox j8kn in 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 tem*(s*1c wzu2 / wrdzlytperature ($98.6 \; ^{\circ}F$) 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 fro8*rdjgp4 njf:vsj/awb:ys m0f. -wa)m 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 ofq: : le37sc)y* lar0 tppkfp8l $20 \; ^{\circ}C$ 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 numerical readings on7zxblr:l ,7x-brzxf 0 the Fahrenheit and Celsius scales the :f0rz7x7z, bl-xxlrbsame?

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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 lonwsl w39aj. 1fzg at $-20 \; ^{\circ}C$ 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 long at y3)a kte1g4sjb+l )mk$20 \; ^{\circ}C$ 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 c,e dox:d+mf3edo 3 .ikij.ic 8ontract when the temperature drops ijokd,fdc3+oi.eed. mx :3i 8 from $24 \; ^{\circ}C$ 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 1f;cfk-ct li/r+ oxw g-3*wy2 c.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 avaissp)9t qz* vax ,5ply(lable. How long a piece 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 around its bushing ai10 q w537luzdcd79ohx/ styzt $20 \; ^{\circ}C$. 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 expansi :gqv,,vj6 wv pi9xvfp):pt q5on for gasoline 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 k5h uxh( 7cc4-y eky8yto the rim 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 fcsdtsme7g8,6+ur ck a a+4wh ;rom $4.0 \; cm^{3}$ 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 i 8 0z*s)e-i +ysb ,wecq+honytw7j*wa 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 temperature, in degr rg)sht1ws4 )zv thi80ees Fahrenheit, does 14) 8sthwi hgst)vr0zthis 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 prqrlvx4)(1ifpsffo t5v1 8y/ tessure of 400 kPa. Find the absolute pressure ifyvl8tr fps1(fo4xv)t5q fi1/ the 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 perfect gas are a:7uiv19g3 jlq bp/2rwb cxb q3t $0 \; ^{\circ}C$ 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 perfnhbx-:m 7qe t-gf d*x9q(z+fject gas are 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 vpb.jkvghr ai/ 32 r(*gas 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 g of wa l5dvum8v609jaaf j5 wter? Express your answer as a multiple of Avogadro's number NA. (The mole v 5 jwflu5m96d8aj0vacular 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 2.00 kg of copper? (The atoinr- 5i5c 2ildms- l u1e):dhgmic weight of copper is 63.5 and its specifcils5ir 52 hd 1-en:m)l-udg iic 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 33.6 L under stb a3 ij6gk+jo9andard conditions. How many m63ji o g9ak+bjol 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 1.0 L at wew :(*ej 0pi9w 9bdyp)8xkjzw2 cnxs7ct6; ba 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 of vxt2g,csuveowmn1 a )cc ye 7 1.4l;-jv3plri+olume $100 cm^{3}$ 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 of glk wl: pk+p.k5m )c(9 q )lbiep3q9xpthe sample?9ql(pkl+.9kcmp :3gq lkxp)5 )pwb ei

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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 and a 4373.qe-adr f0nm4bx aoda b ktemperat 3 o-ndbra4a07abkmxe .3qd4fure 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 occupies9*gpii t +rf1dq p km17cd2ke; $600 \; cm^{3}$ 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 gas thermometer is initially atnr h1px83f1 vi $28 \; ^{\circ}C$. 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.adr 5j1o zayp) 2f01bs e414smk5dqct0 L at $20 \; ^{\circ}C$. 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;w.gu,op9pb .t wdtn7 x l63di of $1.0 \; m^{3}$. 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 dioxide (osw3b 8qd ,2/e 2o q 1mse,f)uwg/mbmp$CO_2$) 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 den)aexu y l/n,v37 .aesxsity 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 volum3 8:chykog+u le 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 contains 15 g .zqvlwj4m*o;7 x6h jsof $H_2$, 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 molechy a+;,9fw+l ws gqxt0ules 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 kinetic energy of 6m(sna3rilw1an atom in helium gas equal towr ni(6sla13 m $6.21 \times
10^{-21} \; J$?

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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 the rms spe)adq k :w jko(kra0,ccy 4).yued 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 gas6 :);rkh) d ytl-d oxzli*0gtu at STP. How much energy is needed to raise the ti )u:dtdr-);x*koh zl0lgy6 temperature 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 gas is incrtf; ;wk1m1 xd8hkj.ok uy v o1vv))z0keased 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 speed of 500bj +pd;v 2j, trmhl2q9 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 molecules /4 (i/bbzf x *wcvbuqg-tmx9:is 32, and the molecular mass of nitrogen molecules is 28. If these gq:mx x4/f-vcub bzt9w *bi/ (two gases are at 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 grul04n;kg s8 oweater than that of hydrogen. If the molecules in these two gases have the same rms speed, the ratio of hydrogen's absnl04 owg8sk;uolute temperature to that of nitrogen is .

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