The heat of formation is the change in enthalpy accompanying the forma – InterviewSolution

1.	The heat of formation is the change in enthalpy accompanying the formation of a substance from its elements at 298 K and 1 atm pressure. Since the enthalpies of elements are taken to be zero, the heat of formation (DeltaH) of compounds
Answer» Is ALWAYS NEGATIVE Is always positive May be negative or positive Is zero Answer :C

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