# Problem: Use data from Appendix IIB to calculate the equilibrium constants at 25 °C for this reaction: N2(g)+3H2(g)⇌2NH3(g)

###### FREE Expert Solution

We're being asked to determine the K or equilibrium constant for a reaction with ΔG° (standard free energy) for the reaction:

N2(g)+3H2(g)⇌2NH3(g)

We can use the following equation to solve for ΔG˚rxn:

Note that we need to multiply each ΔG˚f by the stoichiometric coefficient since ΔG˚f is in kJ/mol.

ΔG˚rxn = –32.8 kJ

Now use the ΔG°-K equation where:

where ΔG is the free energy in J/mol K;

R is the gas constant (8.314 J/molK);

T is temperature in K;

and as equilibrium constant

Given are:

94% (418 ratings) ###### Problem Details

Use data from Appendix IIB to calculate the equilibrium constants at 25 °C for this reaction: N2(g)+3H2(g)⇌2NH3(g)

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