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When does an adiabatic process become is...

When does an adiabatic process become isentropic?

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In a process if the entropy of a system remains unchanged, then the process is called isoentropic.
In a reversible adiabatic process, `deltaq_(rev)=0`. So the entropy change, `dS=(deltaq_(rev))/(T)=0`. Therefore, a reversible adiabatic process is isentropic.
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