The change in entropy (dS) is defined as-

Options

A. `dS+(deltaq)/(T)`
B. `dS=(dH)/(T)`
C. `dS=(deltaq_(rev))/(T)`
D. `dS=((dH-dG))/(T)`.

Answer

C

Explanation

If a system undergoing a reversible process at TK absorbs an amount of heat, `deltaq_(rev)`, then the change in entropy of the system in the process, `dS=(deltaq_(rev))/(T)`.