N2(g) + 6H2(g) overset to 4NH3(g) What i...

`N_2(g) + 6H_2(g) overset to 4NH_3(g)` What is the enthalpy of the above reaction when the enthalpy formation of ammonia is `-46 kJ mol^-1` ?

184 kJ

-184 kJ

46 kJ

-46 kJ

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