The Standard Enthalpy of Formation of Ammonia Gas Is -46 $\omicron$

question 41

Multiple Choice

The standard enthalpy of formation of ammonia gas is -46.11 kJ.mol^-1 at 298 K .What is the standard reaction enthalpy for the Haber process at 500 ^$\omicron$ C? The molar heat capacities of nitrogen,Hydrogen,And ammonia are29.12,28.82,And 35.06J.k.mol^-1 respectively.

• A) -97.65 kJ.mol^-1
• B) -113.81 kJ.mol^-1
• C) -56.91 kJ.mol^-1
• D)-92.22 kJ.mol^-1
• E) -3.09 kJ.mol^-1

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