# One mole of an ideal gas at 300 K in thermal contact with

One mole of an ideal gas at 300 K in thermal contact with surroundings expands isothermally from 1.0 L to 2.0 L against a constant pressure of 3.0 atm. In this process, the change in entropy of surroundings (ΔS) in JK‾¹ is –

(1 L atm = 101.3 J)

(A) 5.763

(B) 1.013

(C) –1.013

(D) –5.763