Five processes are performed on an ideal gas contained in a cylinder with a mora
ID: 1516755 • Letter: F
Question
Five processes are performed on an ideal gas contained in a cylinder with a morable passion. The PV diagram of each process is shown below. Notes the arrow in each graph showing the direction of the process, The scale on each graph is the same. The number of moles of gas is the same in each case. You will get a bonus point for each part of this problem that you complete without performing any calculation. Rank the work done on the gas in each process, greatest first. Rang positive work greater than negative. Explain briefly. Rank the change in thermal energy in each process, gretest first. Rank positive changes greater than negative. Explain briefly. Rank the amount of heat transferred to the gas in each process, greatest first. Rank positive heat greater than negative. Explain briefly.Explanation / Answer
Work done = area under graph
so,
a) Wb > Wa =We > Wd > Wc
b) Change in thermal energy, dE = heat supplied to the gas - work done by the gas = nCv*dT = n*Cv*[PdV + VdP]/R
Ee > Eb > Ea > Ed > Ec
c) Qe>Qb>Qa>Qd>Qc
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