Enthalpy of a compound is equal to its
Correct answer: B. Heat of formation
- A. Heat of combustion
- B. Heat of formation
- C. Heat of solution
- D. Heat of dilution
Explanation
The standard enthalpy of formation or standard heat of formation of a compound is the change of enthalpy during the formation of 1 mole of the substance from its constituent elements, so the answer is B. The enthalpy of combustion of a substance is defined as the heat energy given out when one mole of a substance burns completely in oxygen. The heat of solution also referred to as the enthalpy of solution or enthalpy of dissolution, is the enthalpy change associated with the dissolution of a solute in a solvent heat of dilution, or enthalpy of dilution, refers to the enthalpy change associated with the dilution process of a component in a solution.
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About Enthalpy
Enthalpy is the heat content of a system measured at constant pressure, and its change indicates whether a reaction or physical process is endothermic or exothermic. The topic covers state functions, enthalpy diagrams, standard enthalpy of formation, combustion and neutralisation, and the relationship between ΔH and internal energy change.
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