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02-01-2023
Chemistry

Answered

Question 10
Use the standard enthalpies of formation to calculate the enthalpy (AHrex) for
the following reaction and suggest whether it is thermodynamically favoured.
3NO2 (g) + H₂O (1)→ 2HNO3 (1) + NO (g)
AH NO₂(g) = +33.2 kJ/mol, AH₁ H₂O(1) = -285.65 kJ/mol,
AH HNO3(1) = -174.1 kJ/mol, AHf NO(g)= +90.2 kJ/mol.
(3 marks)

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