Using the PV diagram given below. Identify the paths associated with isobaric pr

Question

Using the PV diagram given below. Identify the paths associated with isobaric processes. Identify the paths associated with isovolumetric processes Identify whether the work done on the gas will be greater for the path abc or the curved path ac. Explain your answer. Indicate whether state a or d will have a higher temperature. Explain your reasoning. If the internal energy change between point a to c is 35J and the work done along path abc is 25J determine the heat for path abc. Is the entropy change different for path abc and the curved path ac? Explain your answer.

Explanation / Answer

a) isobaric process means constant pressure so paths ab and cd
b)isovolumetric means constant volume so bc and da
c)work done depends on area under the graph of PV diagram so since path abc has more area under the graph more work is done in path abc
d)we know PV=nRT
so when V and n are constant we have T proportional to P
since P at a > P at d state a has more temperature
e)U1-U2= W+Q
35J = 25J + Q
Q =10J
f)entropy is a state function so entropy change will be same for both parts.

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