Question

Calculate the free energy change per mole for the following reactions.
(i) CaCO3
(s) + CaO(s) + CO2
(g) 298K ij
∆H = 117.9 kJ, ∆S = 160.4JK–1

Answer 1

Answer:

Correct option is B)

CaCO3(s)⟶CaO(s)+CO2(g)   Δng=1−0=1

T=977℃=977+273=1250K

ΔE=ΔH−ΔngRT

(=174×(103)−1(8.314)×(1250)) J

=163.6 kJ