Question

For which of these reactions will there be ∆S
positive?
(1) H2O(g) → H2O(1)
(2) H2(g) + 12(g) → 2H2(g)
(3) CaCO3(s) → Cao(s) + CO2(g)
(4) N2(g) + 3H2(g) → 2NH3(g)​

Answer 1

Answer:

3rd reaction will be the answer