The Standard Enthalpy of Formation of Ammonia Gas Is

question 94

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C? The molar heat capacities of nitrogen,hydrogen,and ammonia are 29.12,28.82,and 35.06 JK^1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)(  103.09 kJ  mol ^{ 1} )

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