For the reaction N2(g) + O2(g)→2 NO(g) H° = 181 kJ and S° = 24.9 J/K G°

The equilibrium constant, K, would be greater than 1 at temperatures (above or below).. Kelvin.

The equilibrium constant, K, would be greater than 1 at temperatures above 7269 Kelvin.

Explanation:-

Using Gibbs Helmholtz equation:

Where: T= Temperature =

= enthalpy change = 181 kJ/mol = 181000 J/mol  (1kJ=1000J)

= entropy change=  24.9 J/Kmol

The Gibbs free energy is related to equilibrium constant by following relation:

K > 1, when

Putting the values in the equation:

For < 0, >

Thus the equilibrium constant, K, would be greater than 1 at temperatures above 7269 Kelvin.