15.25: A gas undergoes the unusi2a((*kx8iekm z :xdw ual 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 from a pressurized cylinder, the st 6tzg r:40; wth:brgata4gif3 ream of gas feels cool. Thrawt ig 3t6f;4t0rb z:ha:4 ggis is because

  94.35: A gas can be taken from state a to c*79eiem- d4oq 9-mz cht(xol b by two different reversible processes, a→c or a→b→c. During the direct-*et eiqmdxo7b9lm 4c 9 (hz-o 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 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 of goiw1tyfk :x( 8iz.uhh.l ng 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 is the total heat ai .(zuylf h8xw k1.h:tdded?

  96.22: When an ideal gas is isotherm6 amtcq,r8zmffhd97q7ru /8 g(g2eakally compressed:

  97.15: Which of the following is always true for an isothu(h gg5eup dge4 a,m)1ermal process of an ideal , p4 )(1uggghmd5ueaegas?

  13.31: A monatomic ideal gas undergoes a reversl*f*z0h 5 *vpipbs0q3/ mpp mfible isothermal expansion in an enclosed container. Which one of the followm5i mpbp0qlf3p *z0vpf/ h**s ing quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion;)t nd.: wrd .359slescc3azuocaf. d followed by an isochoric cooling. . .53cecws). :csfo3; 9dzaadt dlrunWhich of the following statements must be true after the completion of these processes?

  11.44: One mole of a monatomic ideal gasib)*e07vao cht mg y46 undergoes an isobaric expansion. In the process, the temperature of the gas increases from 300 K to 500 K. Which one of the following choicev 7 oh*gtc4i0em)y6abs best represents the amount of work done by the gas on the surroundings?

  14.46: A monatomic, ideal gas undergoes an isobaric process. w r0w q/zgfw1e 118pmgDuring the process, the gas performs 80 joules of work on the surroundings. Which one of the following statements best describes the heat excha/g1g11zf0q 8 pewrmwwnge during this process?

  07.40: Which is not true of an isochor;(sl2 -1pj ehio9gcwcv15wmto b*cx 2ic process on an enclosed ideal gas in which the pres-owmhj5* 9bgw lx 1(oi2cs c 2epvtc1;sure decreases?

  15.47 One mole of a diatomic ideal gas undergoes a reversible adiabatic proc hjcpad+js9c x,:ze(2 ess. 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 sample by the surroundingspse a j+jcch:x92d(,z?

  03.48: Two completely identical samples of the same ideal gas ard kbml4k;g0 v)hd1 ngkt7b-;ne in equal volume containers witd4bk1vmb) 7kknn g; l;-h0gdth the same pressure and temperature 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 diffeno+vc w:sent 8t*ce51 rent possible reversible processes performed on a monatomic ideal gas. Process A is isobaric (constant pressure). Process B is isothermaltnwct:v s +18eeo*5nc (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 for an ideal gas, which one of bmy ,h 3cnz/1jthe following reversible processes has the most n3y 1c hj,mz/bheat associated with it?

  04.45: Container A has a sample of */0 0ej u jov5b6xs wg6fzpxa*monatomic ideal gas, while 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 thb wj6js* z0 pxof0u*gax6e5/ve pressure in half. Which sample of gas is now at the higher temperature?

  08.44: A mole of a monatomic ideal gas has blf+,g mn t--upressure P , volume V , and temperature T . Which-bmu tg+, fl-n 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 unde w rfo5-p;l2: 5tzlvds )qxhm+rgo reversible proce-x25tpvmllqd5+:sorwhz) ; f sses. 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