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Are we expected to include the change in entropy due to change in pressure when we are adding up the entropies to find the total change in entropy? I was doing some practice problems and there was a change in volume, temperature, and pressure (I found that out by using PV = nRT and saw that the values for P were different). I calculated the delta S for all of those three parameters and added them up, but the answer wanted me only to add up the delta S (of volume) and the delta S (of temperature). I'm confused as to whether or not I should include the delta S due to delta P in my calculation, because there was indeed a change in pressure.
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