Question

Calculate the change in the entropy (J/K)of the compression of 140 grams of N2 gas as it goes from 100.0 L to 75.0 L.

Answer 1

Entropy

ΔS = nR ln (V₂/V₁0

mole N₂ = 140 g : 28 g/mol = 5 mole

ΔS = 5 x 8.314 ln (75/100) = -11.96 J/mol