Calculate the enthalpy of the reaction 2NO(g) + O₂(g) → 2NO₂(g) given the following reactions and enthalpies of formation: 12N₂(g) + O₂(g) → NO₂(g), δH^∘_a=33.2 kJ 12N₂(g) + 12O₂(g) → NO(g), δH^∘_b=90.2 kJ

(b) Use the data in Appendix B to calculate ΔH° for the reaction of potassium metal with water.

What is the isobaric heat of combustion for ethane, C₂H₆(g), in kJ per mole of ethane at 298.15 k?

How much energy is required to decompose 765 g of PCl₃

What is the heat of combustion of ethane, C₂H₆, in kilojoules per mole of ethane? Enthalpy of formation values can be found in this list of thermodynamic properties.

Use standard enthalpies of formation to calculate δh∘rxn for the following reaction: 2 H₂S(g) + 3 O₂(g)→ 2 H₂O(l) + 2SO₂(g)