Question

What is a spontaneous process?

For the equilibrium A + 2B ⇌ C

ΔH is + 400 kJ and ΔS is + 200 JK-1

Calculate the temperature above which the reaction becomes spontaneous?

Answer 1

The process that takes place on its won without the assistance of external agency is called spontaneous process.

ΔG = ΔH – TΔS

At equilibrium, ΔG = 0

TΔS = ΔH

T = 2000 K.