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At 25°C, the standard enthalpy of formation of anhydrous sodium carbonate is –1130.9 kJ/mol, whereas the standard enthalpy of formation of sodium carbonate monohydrate is –1430.1 kJ/mol. Determine ΔH° at 25°C for the reaction
Na2CO3(s) + H2O(l) → Na2CO3·H2O(s).
(Given: ΔH°f[H2O(l)] = –285.8 kJ/mol)
(A) –13.4 kJ/mol
(B) –285.8 kJ/mol
(C) –585.0 kJ/mol
(D) –299.2 kJ/mol
(E) –156.3 kJ/mol
At 25°C, the standard enthalpy of formation of anhydrous sodium carbonate is –1130.9 kJ/mol, whereas the standard enthalpy of formation of sodium carbonate monohydrate is –1430.1 kJ/mol. Determine ΔH° at 25°C for the reaction
Na2CO3(s) + H2O(l) → Na2CO3·H2O(s).
(Given: ΔH°f[H2O(l)] = –285.8 kJ/mol)
(A) –13.4 kJ/mol
(B) –285.8 kJ/mol
(C) –585.0 kJ/mol
(D) –299.2 kJ/mol
(E) –156.3 kJ/mol
(A) –13.4 kJ/mol