One mole of an ideal gas at 300K occupies a volume V0. The gas is allowed to expand adiabatically and irreversibly into a vacuum until its volume doubles to 2V0. The temperature of the gas remains 300K throughout the process.
Using R=8.314Jmol−1K−1, what is the entropy change of the gas?
a) 0JK−1
b) 5.8JK−1
c) −5.8JK−1
d) 8.6JK−1