Which of the following processes is an iso-entropic process?
A
Isothermal process
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B
Adiabatic process
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C
Isobaric process
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D
Isochoric process
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Solution
The correct option is B
Adiabatic process
What do you mean by iso-entropic process? ⇒The name itself is giving you the answer. The entropy should be same before and after the process occurs. Here we know that, ΔS=dqT In case of adiabatic process, dq = 0 Therefore ΔS = 0