The standard enthalpies of formation of Al2O3 and CaO are −1675 kJmo – InterviewSolution

1.	The standard enthalpies of formation of Al2O3 and CaO are −1675 kJmol−1 and −635 kJ mol−1 respectively.For the reaction,3CaO+2Al→3Ca+Al2O3 the standard reaction enthalpy, ΔrH0=______kJ (Rounded off to the Nearest Integer).
Answer» The standard enthalpies of formation of $A l_{2} O_{3}$ and $C a O$ are $- 1675 k J m o l^{- 1}$ and $- 635 k J m o l^{- 1}$ respectively. For the reaction, $3 C a O + 2 A l \to 3 C a + A l_{2} O_{3}$ the standard reaction enthalpy, $Δ_{r} H^{0}$ =______kJ (Rounded off to the Nearest Integer).

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