Question

Calculate the heat of reaction N2 + 3 h2 gives rise to 2nh3 if the heat of formation of ammonia is - 11 k cal​

Answer 1

Answer:

When 1 mole of ammonia is formed from its elements, the enthalpy change is known as the enthalpy of formation. It is equal to one half the value of the enthalpy change associated with formation of 2 moles of ammonia.

Hence, the enthalpy of formation of ammonia is

2

92.2

=−46.1 kJ/mol.