The enthalpies of elements in their standard states are taken as zero. – InterviewSolution

1.	The enthalpies of elements in their standard states are taken as zero. The enthalpy of formation of a compound (a) is always negative (b) is always positive (c) may be positive or negative (d) is never negative
Answer» The enthalpies of elements in their standard states are taken as zero. The enthalpy of formation of a compound (a) is always negative (b) is always positive (c) may be positive or negative (d) is never negative

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