The enthalpies of elements in their standard states are taken as zero. Hence the enthalpy…
Chemistry · JEE Main · NTA Exams — Chemical Thermodynamics
The enthalpies of elements in their standard states are taken as zero. Hence the enthalpy of formation of a compound
- should always be negative
- should always be positive
- will be equal to twice the energy of combination
- may be positive or negative
Answer
(D) may be positive or negative
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