MCQ
Enthalpy change for reaction, $\frac{1}{2}{H_2} + \frac{1}{2}C{l_2} \to HCl$, is called
  • A
    Enthalpy of combination
  • B
    Enthalpy of reaction
  • Enthalpy of formation
  • D
    Enthalpy of fusion

Answer

Correct option: C.
Enthalpy of formation
c
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, with all substances in their standard states.

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