Question

Hydrogen reacts with nitrogen to form ammonia (NH3) according to the reaction 3H2(g) + N2(g) -> 2NH3(g).The value of ΔH° is –92.38 kJ/mol, and that of ΔS° is –198.2 J/mol · K. Determine ΔG° at 25°C.

Answer 1

Answer:

-33.3164 kJ/mol

Explanation:

3H2(g) + N2(g) ---> 2NH3(g)

we know that  

ΔG° = ΔH° - TΔS°

        =  -92380 -(298 * (-198.2)) J/mol

        = -33316.4 J/mol

        = - 33.31 KJ/mol