Question

Why standard enthalpy of elementary substance is not zero while standard enthalpy of formation is taken as zero??

Answer 1

Explanation:

At this temperature, there is no disorder as the particles stop moving. ... It is practically impossible to reach this temperature and hence standard entropy of an elementary substance is not zero. When one mole of a substance is formed from its elements, the heat change involved is called enthalpy of formation.

Answer 2

Answer:

At this temperature, there is no disorder as the particles stop moving. ... It is practically impossible to reach this temperature and hence standard entropy of an elementary substance is not zero. When one mole of a substance is formed from its elements, the heat change involved is called enthalpy of formation

Explanation:

please mark me as brainlist