2 NH3(g) → 3 H2(g) + N2(g) AH298 = 92 kJ/mol,amAccording to the information above, what is the standard enthalpy of formation, AH®¢, for NH3(g) at 298 K ?(A) -92 kJ/mol(B) -46 kJ/mol(C) 46 kJ/mol(D) 92 kJ/mol(E) 184 kJ/mol

Answered: 2 NH3(g) → 3 H2(g) +N2(g) AH298 = 92…

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Chapter6: Thermochemistry

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Problem 77E: Give the definition of the standard enthalpy of formation for a substance. Write separate reactions...

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2 NH3(g) → 3 H2(g) +N2(g) AH298 = 92 kJ/mol,am %3D According to the information above, what is the standard enthalpy of formation, AHF, for NH3(g) at 298 K ? (A) -92 kJ/mol (B) -46 kJ/mol (C) 46 kJ/mol (D) 92 kJ/mol (E) 184 kJ/mol