15.25: A gas undergoes the unusuany)j 47 zqsg9nl 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 escap. vd r2 r7rsqzdb2h1p)es from a pressurized cylinder, the stream of gas feels cool. This is b q1rd 22rrsvp7bd.zh)ecause

  94.35: A gas can be tjonq ty5od9e:on 0fw),,z7zkgs/ p7 raken from state a to c by two different reversible processes, a→c or a→b→c. During the direct process a→c, 20.0 J of 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 ofko 0,t9:n)z/fygeo5j77 zpro q d,swn 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 shown, in the process (k kqqqt;c-1fof going from a to b 60 J of heat are added, and in the process of going from b to d 20 J of heat are added. In the process of going a to c to d, what;1f(k qqq -tkc is the total heat added?

  96.22: When an ideal gas is isothermally compressebq5nvn)jct 3(d:

  97.15: Which of the following is alwayzyyfeiq+(8 tis:,c *ws true for an isothermal process of an ideiqz+ set,yi:c yf(8 *wal gas?

  13.31: A monatomic ideal gas undergoes a reversib xkw,ve,rvu+d ( )8kti -j(ugole isothermal expansion in an enclosed contv xe kd+vo,-,(gwi) tuju (r8kainer. Which one of the following quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergoej k+jw0 c p85mu3kld(es an isobaric expansion followed by an isochoric cooling. Which of the following statements must be true after the completio8l50jm +kp( kewc3jdu n of these processes?

  11.44: One mole of a monatomic ideal j4u9r xa+p8wb9ve9ay gas undergoes an isobaric expansion. In the process, the temperature of the gas increases from 300 K to 500 K. Which one of the following choices best represents the amount of work doye 949bxrp8j 9 +vuaawne by the gas on the surroundings?

  14.46: A monatomic, ideal gas undergoes an ifkczxj(t,m)-ns y c93sobaric process. During the process, the gas performs 80 joules of work on the surroundings. Which one of the following statem ct(c-y,n 3xm)s zk9fjents best describes the heat exchange during this process?

  07.40: Which is not true of an isochoric process on an enclosed ideal gas x2w 6nfzn9fk -in which the pressure decreases?nz2 fnf9kw-6x

  15.47 One mole of a diatomic ideal gas undergoes a reversible adiabatic procpde -h+aym2p5,xzw + mess. The pressure and volume initially are given as P = 2.0 atm and V = 30 L. If the volume is halved during the adiabatic process, how much work was done on the gas szpahpx+d m em-y2,w5 +ample by the surroundings?

  03.48: Two completely identical samples of the same ideal gnsmecv8 7-;pxas are in equal volume containers with the same pressure and temperature in containers labeled A and B. After the processep -ve87scnmx;s 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 possix d uae:(;u*+xdop7nwble reversible processes performed on a monatomic ideal gas. Process A is isobaric (constant pressure). Process B is isothermal (constant temperature). Process C is xdu *d pw+ne xou(a;:7adiabatic. Process D is isochoric (constant volume). For 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, which osqwio+3o;9 jt ne of the following reversiow+t s 9oj;q3ible processes has the most heat associated with it?

  04.45: Container A has a sample of monatomic d1t80 cqua b.sideal gas, while container B has a sample of diatomic ideal gas. The two gases start with the same init.0c8tu1s bdaqial temperature, volume, pressure, and number of moles of molecules. Each gas now undergoes a reversible adiabatic process that 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 preimgb)m+8 gd6q1mo(t tt. p6myssure P , volume V , and temperature T . Which of the following processes would result in the greatest amount of energy adde6g6t d g1p8m( q).mombt+mi tyd to the gas from heat?

  13.48: Two identical samples of a monatomic ideucf n3ebck/,n* x19zmk 3 .oxval gas are to undergo reversible processes. Which one of the following choices is a cc/xxk3kv oen1*3 9b.cmu, z fnorrect statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling