Chemistry

Problem

A 1.00 mol sample of an ideal gas expands isothermally at 298 K from 10.0 L to 25.0 L. Using

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

, what is the value of

\Delta S

for the gas? a)

+3.3\,\text{J K}^{-1}

-7.6\,\text{J K}^{-1}

+20.8\,\text{J K}^{-1}

+7.6\,\text{J K}^{-1}