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

CHEMISTRY · Single correct · A Level · Chemistry · Thermodynamics · Thermodynamics

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}

(b)

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

(c)

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

(d)

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