∆G=∆H-T∆S

∆H is Enthalpy

T is temperature

∆S is Entropy (or change in entropy).

In this question, entropy is (+) because the product has more moles and a change in state (s-->g).

But I don't know if ∆H is (+) or (-).

If ∆G=+

Then it's Non-spontaneous.

If ∆G=-

Then it's spontaneous.