15.25: A gas undergoes the unusx, urpbpo9xb ndpf(wj4) 5fsz*w8: u 5ual 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 fro 6leyeq 7*jly,m a pressurized cylinder, the stream of gas feels cool. ly 7,l6y ej*eqThis is because

  94.35: A gas can be taken from state a to c by two different reversd e1ts.sp ;jg7ible 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 of heat are a sj1st dpge7;.dded 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 going from+j e6o(eimm+ :ud1i9gt/ k2leuu4cva a to b 60 J of heat are added, and in the process of going from b to d 20 ve i e:ut(ul61g jk+d 4umem2co/+i9 aJ of 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 col 39q)-jse mfy0k m5btmpressed:

  97.15: Which of the following is alt jdx4dfc5( 5uways true for an isothermal process of an ideal g ( xfcjud4dt55as?

  13.31: A monatomic ideal gas undergoes a reversible isothermal exbsb (w+(8hf7 a9ybg,t8yozve pansion in an enclosed container. Which one of the following quantities associated with the gas bgw(y+ ,9h8evszo8at b7y b(fhas a value of zero?

  09.33: An ideal gas under /1x/kro. vvt4*g un7f0jrmu.k pyar(goes an isobaric expansion followed by an isochoric cooling. Which of the follo (v v/. g1mr*j7ru4ytp.fxrk anuo0k/wing statements must be true after the completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobaric expansion. In the gv5pfrk-w( wo .ts z52mfut:8l6 g7cd process, the temperature of the gas increases from 300 K to 500 K. Which one of the following choices best represents the:82g.f(pu r7 km-s tg 56olfzd w5wtvc amount of work done by the gas on the surroundings?

  14.46: A monatomic, ideal gas t1f csu -a/90yodzem; undergoes an isobaric process. During the process, the gas pect-osez 9mau f;/01dyrforms 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 prgkizu g66 z4 (wzkpr30ocess on an enclosed ideal gas in which the pressure decreases6r ki 6uk4p3w 0zgzg(z?

  15.47 One mole of a diatomic ideal gas undhgq4p4-d gu94aip5 pan qaz4+ergoes 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 adiabatic process, how much work was done on the gas sample by the surro h pq-g 5na4+iagu4 4pq9azdp4undings?

  03.48: Two completely identical samples of the same ideal gas are in equa iira -f4w3pn*l volume conwnpii* 4-r f3atainers with 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 ftz d,3f 6:j3r hyo;,9zcotzahxpb i; )our different possible reversible processes performed on a monatomic ideal gas. Process A is isobaric (constant pressure). Process B is isothermal (constant temperature). Process C is adiabatic,c,3 at9hpb:j);z;6ozzt d x f3ihryo . 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 the fole+ 8/+c4 lnrjzah5 cfvlowing reversibl4cjveaf/ n5+rh 8zcl+e processes has the most heat associated with it?

  04.45: Container A has a sample of monatomic ideal gas, g)5;bx ev2;o:.l klbdp beh)vwhile container B has a sample of diatomic ideal gas. The two gases start with the same initial temperatu hgvo:ed5p;2 e bbk vl;x.)lb)re, 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 ideald n,p-,ekhu,v + xx)dt gas has pressure P , volume V , and temperature T . Which of the following processes would result in thux, vdd ,+x)t-npek,he greatest amount of energy added to the gas from heat?

  13.48: Two identical sy5or 72w (bd8zfcidb*7 c4 ory*nc kl8amples of a monatomic ideal gas are to undergo reversible processes. Which one of the following choices is a correct statement about the ik b*4 (yrlnd b 2oczo7f*8yc5wd8cr7 heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling