Chemistry

Problem

One mole of an ideal gas at 298 K expands isothermally and reversibly from an initial volume of 2.00 L to a final volume of 4.00 L. Using

R = 8.314\,\text{J}\,\text{mol}^{-1}\,\text{K}^{-1}

, calculate the numerical value of the molar entropy change, ΔS, in J K⁻¹.