Chemistry - Thermodynamics - II Question with Solution | TestHub

One mole of an ideal gas at 350 K is in a 2.0 L vessel of thermally conducting walls, which are in contact with the surroundings. It undergoes isothermal reversible expansion from 2.0 L to 3.0 L against a constant pressure of 4 atm . The change in entropy of the surroundings $(\Delta \mathrm{S})$ is $\_\_\_\_$ $\mathrm{J}{\mathrm{K}}^{-1}$ (Nearest integer)

Given : $\mathrm{R}=8.314\mathrm{J}{\mathrm{K}}^{-1}{\mathrm{Mol}}^{-1}$.