The standard enthalpies of formation for NH_3 | vedclass

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(B) The stability of a compound is inversely proportional to its standard enthalpy of formation $(\Delta_fH^\circ)$.More negative (lower) the value of

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$C < A < D < B$

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(B) The stability of a compound is inversely proportional to its standard enthalpy of formation $(\Delta_fH^\circ)$.More negative (lower) the value of $\Delta_fH^\circ$,more stable is the compound.The given values are:$A (NH_3) = -46.19 \, kJ/mol$$B (CO_2) = -393.4 \, kJ/mol$$C (HI) = +24.94 \, kJ/mol$$D (SO_2) = -296.9 \, kJ/mol$Comparing the values: $+24.94 > -46.19 > -296.9 > -393.4$.Therefore,the increasing order of stability is $C < A < D < B$.

The standard enthalpies of formation for $NH_3$,$CO_2$,$HI$,and $SO_2$ are $-46.19$,$-393.4$,$+24.94$,and $-296.9 \, kJ/mol$ respectively. What is the increasing order of their stability?

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