JEE Main 2023 · 12 April · morning · Numerical answer · +4 / −0

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 ( Δ S) is ___________ J K⁻¹ (Nearest integer)
Given: R=8.314 J K⁻¹ mol⁻¹.