15.25: A gas undergoes the unusual process M op 6l)t9dw*8bb rmhh.$\to$ 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 escape nd+9vql4k 8em 91va /uuonaj/t.,na fs from a pressurized cylinder, the stream of gas feels cool. Tqu/ lo /a4u9f8va mn1 .tnve jan,+9kdhis is because

  94.35: A gas can be taken from state a to c by two different reversible propvc1 j0 ifv8c)5oy n(rua7y)v cesses, 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 of heat are added to thy 8pavij cc) yvvrufn17(5)o 0e system. How much work is done by the system during a→b→c?

  06.26: In the Pressure versus Volume graph /7,6i nw)ivj.iaqf beshown, 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 of heat are added. In the process of going a to c to d vqjei. n6a),i /wf7ib, what is the total heat added?

  96.22: When an ideal gas is isothermallyuc xllpxca e1o*,0m( ia262pq compressed:

  97.15: Which of the following is always true for an isuw5dv03))lmv2qbnuux 0 ahj3othermal process of an ideal ga q d02hvxnauv3 l0j3)w buu5)ms?

  13.31: A monatomic ideal gas /* ojvll kv:uv1m 5.abh8 qy(fundergoes a reversible isothermal expansion in an enclos*yh kb 8ovmv5fj :1a l/(uqlv.ed container. Which one of the following quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion followed bf5t22fvyej1w y an isochoric cooling. Which of the following statements must be true after the completion of these pvy2f5f1j w t2erocesses?

  11.44: One mole of a monatomic ideal gas undergoes an isobaric ex-nk-m+ir 07 d+.*odz sjbzdob pansion. In the process, the temperature of the gas increases from 300 K to 500 K. Which one of the following choices best representsorz0+m + s kzd ob-7db.j-dni* the amount of work done by the gas on the surroundings?

  14.46: A monatomic, ideal gas undergoes an isobaric process. Dur+i8j we h16sjlp8:owr +cd-oring the process, the gas performs 80 joules of work on the surroundings. Which one of the following statementsrdo+hw6s wjcp88rj:i-l oe+1 best describes the heat exchange during this process?

  07.40: Which is not true of an isochoric process on an enclo2r:cob0x (tnr sed ideal gas in which tr2(n xtr:o0b che pressure decreases?

  15.47 One mole of a diat)bit: ry,i3s eomic 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 trei y )is,3:bthe adiabatic process, how much work was done on the gas sample by the surroundings?

  03.48: Two completely identical sampl ;0g0 seruyg-ves of the same ideal gas are in equal volume containers with the same pressure and temperature in containers labeled A and B. After the processes u0syeg0r v-g ;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 possiblev;fh *5*w 5feinoi 8fm reversible processes performed on a monatomic ideal gas. Process A is iso f558vm **ehwiofnfi;baric (constant pressure). Process B is isothermal (constant temperature). Process C is adiabatic. 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 bw,h p (7 fxc0o17rushfor an ideal gas, which one of the following reversible processes has the mu c(rwh1 , 7xsp70obfhost heat associated with it?

  04.45: Container A has a sample of monatomic ideal gas, whilee4o klog,2zxq wu84h1w5. lsv 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 that cuts the pressure in half. Whi,x5hg o 4vwlo1kl sqew8 .u24zch sample of gas is now at the higher temperature?

  08.44: A mole of a monatomic ideal gas has pressure tqu r.;8j -0o ckz2lmkP , volume V , and temperature T . Which of the following processes w 2-r0tju.kzc8om;l kqould result in the greatest amount of energy added to the gas from heat?

  13.48: Two identical samples of a monatomic ideal gas are .; y11rrdn udg7 vva*gmy;x )kto undergo reversible processes.7y;r)ku.;a1g dm1y* dvxr gvn Which one of the following choices is a correct statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling