Which of the reactions defines H^ _f? **[IIT JEE 2003]**

JEE Main Chemistry question

Which of the reactions defines ? **[IIT JEE 2003]**

(A)
(B)Correct
(C)
(D)

Answer: (B)

Solution

The standard enthalpy of formation is defined for the formation of exactly one mole of a compound from its elements in their standard states. (a) uses diamond, which is not carbon's standard

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Question ID VK-134722