Enthalpy change for the reaction, 12H2(g)+12Cl2(g)→HCl(g) is called
A
Enthalpy of combustion
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B
Enthalpy of sublimation
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C
Enthalpy of formation
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D
Enthalpy of fusion
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Solution
The correct option is C Enthalpy of formation The standard enthalpy of formation of a compound is the change of enthalpy during the formation of 1 mole of the substance from its constituent elements with all substances in their standard states.