Suppose that 3.0 mmol N₂(g) occupies 36 cm³ at 300 K and expands to 60 cm³. Calculate ∆G for the process.
a) ∆G=−12kJ/mol
b) ∆G=12kJ/mol
c)∆G=6kJ/mol
d) ∆G=−6kJ/mol