15.25: A gas undergoes the unusual process M8;j snjze/0 puh 5t2vq $\to$ 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 gm.cx.78xrzvkof, 8z stream of gas feels cool. This is becauserxzfo8.k mc8 .7 vx,zg

  94.35: A gas can be taken from state a to c by two different reversibcs7dciqu mpol:;v+ 3 d rt;(;cle 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→c3(o ;p i+rmu;7:q;sv cldctdc, 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 xy7lh3:an/9 ndjy za4going 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 a4dx 3 nj7n9 z/:lyahaydded. In the process of going a to c to d, what is the total heat added?

  96.22: When an ideal gas is n/0v w-f mfs0ku6ssd ,isothermally compressed:

  97.15: Which of the following is always bi/ fir3*h jz9m:s/s,e) cjo ntrue for an isothermal process of an ideal gacebi)r s*h/zi:9/3,sofjjm n s?

  13.31: A monatomic ideal gas 8yec ew 9gmi:9undergoes a reversible isothermal expansion in an enclosed container. Which one of the following quantities associated with the gas has a value of zem8ieewy9 : 9cgro?

  09.33: An ideal gas undergoes an isobaric expansion followed by an isochorh1 appi) q7,tric cooling. Which of the following statements must be true 1q, )p7ph rtaiafter the completion of these processes?

  11.44: One mole of a monatomic ideal gas undi: klk)0popbm4vwn2 .ergoes 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 done by the gas on the surround2pw k40vol pkb:m) .niings?

  14.46: A monatomic, ideal gas undergoes a,rm)e9ikkf )d pu0;dmyet3e8 n isobaric process. During the process, the gas performs 80 joules of work on the surroundings. Which one of the following statements best describes the heat r; )puie30dkmme8d, k9)eytf exchange during this process?

  07.40: Which is not true of an isoyca,. sb6x 5q43weg -rrjen6uchoric process on an enclosed ideal gas in which the pressure decreases u6q ea,xy b-6sjrw53cer. 4gn?

  15.47 One mole of a diat z)dyp,5y,sbn,jdm.mmoj ;a; omic 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 v.5 om; m,;pd )d,s bzmj,yyanjolume is halved during the adiabatic process, how much work was done on the gas sample by the surroundings?

  03.48: Two completely identical samples of the same ideal gas are in equal volm 8d 5gml+q;-fd geh2iume containers with the same pressure and temperature in contain qhgi52 -gml +m;8ddfeers 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 possiblxm;d a nmeh)+t1/ 4uape reversible processes performed oxae aup) h;1mtn+/m4d n 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). 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 folh-k:tm-w f h +rja;+oflowing reversible processes has the mos -fworh+h ;a+f tj-:mkt heat associated with it?

  04.45: Container A has 6./-8s23 7dimvpw +zmktnvvew rwz 9aa sample of monatomic ideal gas, while container B has a sample of diatomic k r 6pd8/mazw9zs- 7t+vw2ien.mv wv 3ideal 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. Which sample of gas is now at the higher temperature?

  08.44: A mole of a monatomic ideal gas has pressure5yx. wbb/o7te P , volume V , and temperature T . Which of the following pr5.7y/ bo wxebtocesses would result in the greatest amount of energy added to the gas from heat?

  13.48: Two identical samples of a monatomic /qn9w3;f;zw4b umef m ideal gas are to undergo reversible processes. Which one of the following 3 n;;efb4 fz9mqwwu/m choices is a correct statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling