15.25: A gas undergoes the unu l)ydve j7 -8btdai7j9sual 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 stream of gas p:xsc0te-0 vg feels cool. This is bece0t p:c x0-svgause

  94.35: A gas can be taken from staz9averr87t6m wf/lr+ sl 6o r9te 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 tz69 w7 +8/lrelfrmsrov 9r 6athe 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 vee kzbu*(r w;e,yz/pnn /5m i bo/qes7ywn*:k: rsus Volume graph shown, 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 s:meeynoq7ybn/i 5eru,w/ (n*/kbz ;wz*:kpthe process of going a to c to d, what is the total heat added?

  96.22: When an ideal gas is isothe. +auhnan2n.j*ngvaey7o.dvv n9 c-0 rmally compressed:

  97.15: Which of the following is arm50ar999pz) h:wdzw ie 9 evklways true for an isothermal process of an ideal evr9hwa5ip zk9 9m0 )rd:w z9egas?

  13.31: A monatomic ideal a 8z3nh fjh+l-gas undergoes a reversible isothermal expansion in an enclosed contain- h+ jfazh8ln3er. Which one of the following quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion followq1c9yac k3n:a ed by an isochoric cool1q9caa:y k3 cning. Which of the following statements must be true after the completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobaric expansion. I d:jzfcy +v9w8n 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 sud:f jcy+zv98wrroundings?

  14.46: A monatomic, ideal gas undergoes an isobaric process. During the proceshbdtip-yh : tfan8 q3f3/q)b.s, the gas performs 80 jouh id.)fn qq:8/b3t -fb3tpy ahles 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 ang6hknk oze tm0.:s6j(07l v yt isochoric process on an enclosed ideal gas in which the pressu.zgks6ye7 hnv6:tk0 0 j(otm lre decreases?

  15.47 One mole of a diatomic ideal gas undergoes a reveru,4d+rw/ig gr -lld -osible 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 surround-w,-ulldgri/o4g+ d r ings?

  03.48: Two completely identic( ,j7t,o/opyk3zv gml (ogfjd k,+ -n;derl4sal samples of the same ideal gas are in equal volume containers with the same pressure and temperature in c o z-l jds+onp;( olt34/ygmkfr kd,,vj7e,g(ontainers 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 possible reversible procwxyxc(i o93-0qax)cwesses performed on a monatomic ideal gas. Process A is isobaric (constant pressure). Process B is isothecox 90w(i y)c- x3xawqrmal (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 ofh1 hcp,g5hru/7 0 c8qj9n)7z nl lvwwa P, V, and T for an ideal gas, which one of the following reversible processes has the most heat assoczllh/gh w 1 ,hq wu rjv07)cann8c975piated with it?

  04.45: Container A has a sample of monatomic ideal gas, while cond68t 0z vvfso;tainer 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. Which sample of gas is now at the higher temperature6;s tzvd v8o0f?

  08.44: A mole of a monatomic ideal gas has pressure P , volb 68eu 3s+rarxume V , and temperature T . s+6rr ux3ae8bWhich 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 ar (v t5 wbdefwv)xl5.8ue to undergo reversible )vlfvewubd5. x5w(8 tprocesses. 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