Use the thermochemical equation: CaCO3 (s) + 2NH3 (g) → CaCN2 (s) + 3H₂O (1) AH° = +90.1 kJ and the given hypothetical standard enthalpies of formation to calculate a hypothetical AHOf (in kJ/mol) for CaCN2 (s). AHOf for CaCO3 (s) = -1205.4 kJ/mol AHOf for NH3 (g) = -46.5 kJ/mol AHOf for H₂0 (1) = -289.2 kJ/mol Final answer: TWO decimal places
Use the thermochemical equation: CaCO3 (s) + 2NH3 (g) → CaCN2 (s) + 3H₂O (1) AH° = +90.1 kJ and the given hypothetical standard enthalpies of formation to calculate a hypothetical AHOf (in kJ/mol) for CaCN2 (s). AHOf for CaCO3 (s) = -1205.4 kJ/mol AHOf for NH3 (g) = -46.5 kJ/mol AHOf for H₂0 (1) = -289.2 kJ/mol Final answer: TWO decimal places
Chapter6: Thermochemistry
Section: Chapter Questions
Problem 77E: Give the definition of the standard enthalpy of formation for a substance. Write separate reactions...
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