Question
Question: The enthalpies of elements in their standard states are taken as zero. The enthalpy of formation of ...
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
May be positive or negative
Explanation
Solution
: The enthalpy of formation of a compound may be positive or negative as it can be exothermic or endothermic process.