Thread: Thermodynamics

What is the value of change in entropy (S2-S1) for irreversible adiabatic process?

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Originally Posted by Iqra Javed

What is the value of change in entropy (S2-S1) for irreversible adiabatic process?

What is the question about? I have no idea what the answer is.

Originally Posted by Robittybob1

What is the question about? I have no idea what the answer is.

Then please don't muddy the water. The simplest way of saying what the question is about is to note that the OP wishes to know the value in the change in entropy (S3-S1) for an irreversible adiabatic process.

If the work addition in the process is entirely against friction or resistance, the entropy increase is dw/T but not all work may be converted. Reversible work does not increase entropy.