Concept explainers
(a)
Interpretation:
Concept introduction:
Hess’s law is used to calculate the enthalpy change of an overall reaction that can be derived as a sum of two or more reaction. According to Hess’s law
Enthalpy is a state function so the value depends upon the initial state and final state not on the path so
(b)
Interpretation:
Whether
Concept introduction:
The standard enthalpy of formation
Standard state includes
(c)
Interpretation:
Concept introduction:
The standard enthalpy of reaction is calculated by the summation of standard enthalpy of formation of the product minus the summation of standard enthalpy of formation of product at the standard conditions. The formula to calculate the standard enthalpy of reaction
Here, m and n are the stoichiometric coefficients of reactants and product in the balanced chemical equation.
(d)
Interpretation:
Whether
Concept introduction:
The standard enthalpy of formation
Standard state includes
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