1.

In which of the following reactions the energy released is not an enthalpy of atomization?(a) decomposition of a hydrogen molecule into two hydrogen atoms(b) decomposition of an oxygen molecule into 2 oxygen atoms(c) formation of a water molecule(d) decomposition of chlorine moleculeThe question was posed to me during an online exam.This key question is from Thermodynamics topic in chapter Thermodynamics of Chemistry – Class 11

Answer»

Right answer is (c) formation of a water molecule

To explain: The ENTHALPY of atomization is an enthalpy change that occurs when one molecule of a molecule BREAKS into its atoms, but here the of a water molecule formation does not SATISFY the definition of the enthalpy of atomization.



Discussion

No Comment Found

Related InterviewSolutions