Question

For which of these reactions will there be deltaS
positive?
(1) H2O(g) → H2O(L)
(2) H2(g) + 2(g) → 2HI(g)
(3) CaCO3(s) → CaO(s) + CO2(g)
(4) N2(g) + 3H2(g) → 2NH3(g)​

Answer 1

Answer:

3rd one

Explanation:

cause it requires heat to breakdown CaCO3