15.25: A gas undergoes the un iihp/ )hr1g8busual process M $\to$ N in the pressure vs. volume graph shown. Which one of the following choices properly represents the signs of the internal energy change of the gas $\Delta$U, the total energy transferred as heat to the gas Q, and the total work done on the gas by the surroundings W, for this process?

  03.28: When gas escapes 9gu ivd)53k9d9zw e rh-;ksthfrom a pressurized cylinder, the stream of gas feels cool. T5)-d;9ikeh3 t9v g hurw9 szdkhis is because

  94.35: A gas can be taken from state a to c by two diff enjabuf0 ()n;j;)ig6z:xatv erent reversible processes, a→c or a→b→c. During the direct process a→c, 20.0 J tjnze vf i(; a0;ua 6b))n:jgxof work are done by the system and 30.0 J of heat are added to the system. During the process a→b→c, 25.0 J of heat are added to the system. How much work is done by the system during a→b→c?

  06.26: In the Pressure versus Volume graph showzuxhk5l +x2: i58xbtn3ifg s5n, in the process of going from a to b 60 J of heat are added, and in the process of going from b to d 20 J n us 5 x38lxbfk:5ihx+t g5i2zof heat are added. In the process of going a to c to d, what is the total heat added?

  96.22: When an ideal gas is isothermally comprex2xa 4dq/i+1osvq.q i5y nyu+ssed:

  97.15: Which of the following is always true fo6mqgfj)5 9yjhuaw j+)r an isothermal process of an ideal gaaj9)jjuh56qf m+wg)y s?

  13.31: A monatomic ideal gas undergoes a reversible isothermal expansio+x,lp ez.p+ zv 4-tecnn in an enclosed container. Which one of the following quantities assop l+z,4vz xt- p.n+eecciated with the gas has a value of zero?

  09.33: An ideal gas under: 0y .ff6-a xz zi3yzrok6lui,goes an isobaric expansion followed by an isochoric cooling. Which of the following sz6f z: o3zufa,6x yili.-0ry ktatements must be true after the completion of these processes?

  11.44: One mole of a monatoynjc:w grakm* g z89e50 /u6acmic ideal gas undergoes an isobaric expansion. In the process, the temperature of the gas increases from 300 K to 500 K. Whic 8nkjy g9ma0cru/5 gae*6:zcw h one of the following choices best represents the amount of work done by the gas on the surroundings?

  14.46: A monatomic, ideal gas undergoes an isobaric process. Dgw63a7l6bt mqt1s+cleus/k m y1l .3 suring the process, the gau / al.ss3qt ec7y3stl6kgw b+1l1 6mms performs 80 joules of work on the surroundings. Which one of the following statements best describes the heat exchange during this process?

  07.40: Which is not true of an isochoric,4w scfg5o6jf x32yik process on an enclosed ideal gas in which the 3soi w,4k6 g2cy5xjffpressure decreases?

  15.47 One mole of a diatomic +m; h8n kqieyn1ed71u ideal gas undergoes a reversible adiabatic process. The pressure and volume initially are given as P = 2.0 atm and V = 30 L. If the volume is halved during the adqunh8m +yd ;eki en171iabatic process, how much work was done on the gas sample by the surroundings?

  03.48: Two completely identical samples of the s b1)2ph -hgobvaet8 an5cmkl +s/ kb*;ame ideal gas are in equal volume containers with the same pressure and temperap-b 1)+;kc oat8e gk/lhhvnam bb*5 2sture in containers labeled A and B. After the processes are performed on the gases in containers A and B, which is at the higher temperature?
The gas in container A performs non-zero work W on the surroundings during an isobaric (constant pressure) process before the pressure is reduced isochorically (constant volume) to 1/2 its initial amount.
The gas in container B has its pressure reduced isochorically (constant volume) to 1/2 its initial value and then the gas performs non-zero work W on the surroundings during an isobaric (constant pressure) process.

  05.38: The PV diagram shows four different possible reversible processes perfos4+wh+ uogp1 yrmed on a monatomic ideal gas. Process A is isobaric (constant pressure). Process B is isothermal (constant temperature). Process C is adiabatic. Process D is isochoric (constant volume). Fo 4u so+wg1yhp+r which process(es) does the temperature of the gas decrease?

  16.48: From a given state of P, V, and T for an ideal gas, wi bjp (xhahk*r0 kx.-s u5u77which one of the follow(kwxi abku7hus.* 7 hj50rpx- ing reversible processes has the most heat associated with it?

  04.45: Container A has a sample of monatomic ideal gas, wrg4hxh i:q bkt(989i zhile container B has a sample of diatomic ideal gas. The two gases start with the same initial temperature, volume, pressure, and number of moles of molecules. Each gas now undergoes a reversible adiabatic process thatb ix4h8( i:t zgkrq99h cuts the pressure in half. Which sample of gas is now at the higher temperature?

  08.44: A mole of a monatomic ideal gas has pressure P , volume V , ande v)j si*oxm41 temperature o * xivm41esj)T . Which of the following processes would result in the greatest amount of energy added to the gas from heat?

  13.48: Two identical samples of a monatomic ideal gas are to undez hc 09,4 fepqlmo*4iwrgo reversible processes. Which one of the following choices is a correct statemen4fli oq4whz,0 me p*9ct about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling