The increase in entropy in JK -1 of a substance when it absorbs 1 kJ of heat energy at 3 K is

Question

The increase in entropy in JK -1 of a substance when it absorbs 1 kJ of heat energy at 3 K is (A) 3.33 (B) 333.3 (C) 0.333 (D) 0.0333

Tardigrade Admin · Accepted Answer

Given, Heat(q)=1 kJ =1000 J Temperature =3 K Entropy (Δ S) =( text Absorb heat (q)/ text Temperature (T)) =(1000 J /3 K ) Entropy (S)=333.3 J / K

Q. The increase in entropy in $J K^{- 1}$ of a substance when it absorbs $1 k J$ of heat energy at $3 K$ is