For each of the following pairs, indicate which substance possesses the larger standard entropy. (BE SURE to circle one in each pair).

a. 1 mol of He (g) in 3 L @ 298 K OR 1 mol He (g) in 3 L @ 400 K

b. 1 mol of O2 (g) @ 298 K, 20 atm OR 2mol O2 (g) 298 K, 20 atm

c. 1 mol of CH4 (g) OR 1 mol F2 (g). Both gases are @ 600o K, 2 atm.

d. 3 mol of CO2 (g) @ 298 K, 20 atm OR 3 mol CO2 (g) 298 K, 10 atm

e. 1 mol of Ar (g) in 7 L @ 400 K, OR 1 mol Ar (g) in 3 L @ 400 K