Three Moles of a Gas at T = 250 K

Multiple Choice

Three moles of a gas at T = 250 K expand quasi-statically and adiabatically from an initial volume of 30 L to a final volume of 60 L.The change in entropy of the gas during this expansion is (R = 8.314 J/mol·K)

A) 17.3 J/K
B) 18.6 J/K
C) -17.4 J/K
D) 19.5 J/K
E) zero