<p>One mole of an idel 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&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><mfenced><mrow><mo>&#8710;</mo><msub><mi>S</mi><mrow><mi>s</mi><mi>u</mi><mi>r</mi><mi>r</mi></mrow></msub></mrow></mfenced></math>&nbsp;in&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>J</mi><msup><mi>K</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math>&nbsp;is:</p>

<p>(1 L atm = 101.3 J)</p>