Use the standard reaction enthalpies given below to determine ΔΗ, for the following reaction: rxn 8 SO3(g) →8 S(s) + 12 O₂(g) AH°rxn = ? Given: SO₂(g) →S(s) + O₂(g) AH°, +296.8 kJ = 2 SO₂(g) + O₂(g) → 2 SO3(g) AH rxn = -197.8 kJ a. -692.4 kJ b. 3166 kJ c. -791.4 kJ d. -3166 kJ e. -494.6 kJ

Calculate Δ­H for the reaction  NO(g) + O(g) → NO2(g) given the following information: NO(g) + O3(g) → NO2(g) + O2(g)                     Δ­H = -198.9 kJ O3(g) → 3/2O2                                                   Δ­H = -142.3 kJ                          O2(g) → 2 O(g)                                                   Δ­H = 495.0 kJ

Find the ΔH (kJ) for the reaction below, given the following reactions and subsequent ΔH values: N2(g) + 2O2(g) → 2NO 2(g) N2(g) + 3H2(g) → 2NH3(g) ΔH = -115 kJ 2NH3(g) + 4H2O(l) → 2NO2(g) + 7H2(g) ΔH = -142.5 kJ H2O(l) → H2(g) + 1/2O 2(g) ΔH = -43.7 kJ (Supply answer up to the 1st decimal point)

The standard enthalpy change for the following reaction is 103 kJ at 298 K. N2(g) + O2(g) + Cl2(g) ---------> 2 NOCl(g)        ΔH° = 103  kJ What is the standard enthalpy change for this reaction at 298 K? 1/2 N2(g) + 1/2 O2(g) + 1/2 Cl2(g)-------->  NOCl(g)  kJ

Given the following thermochemical equations, 2Cu (s) + S (s) · → Cu₂S (s) AH° = -79.5 kJ S (s) + O₂ (g) → SO₂ (g) AH° = −297 kJ Cu₂ S (s) +20₂ (g) → 2CuO (s) + SO₂ (g) AH° = -527.5 kJ calculate the standard enthalpy of formation (in kJ mole¹¹) of CuO (s).

Use the standard reaction enthalpies given below to determine ΔH°rxn for the following reaction: (Hess Law)4 NO(g) + 2 O2(g) → 4 NO2(g)ΔH°rxn = ? Given: N2(g) + O2(g) → 2 NO(g) ΔH°rxn = +183 kJ   1/2 N2(g) + O2(g) → NO2(g) ΔH°rxn = +33 kJ

What is the standard enthalpy change for the reaction?  2NH3(g)N2H4(l) + H2(g)N2H4(l) + O2(g)N2(g) + 2H2O(g)               ΔH°1 = –543 kJ·mol–12H2(g) + O2(g)2H2O(g)                              ΔH°2 = –484 kJ·mol–1N2(g) + 3H2(g)2NH3(g)                               ΔH°3= –92 kJ·mol–1

Given the standard enthalpy changes for the following two reactions: (1) Hg(1) + Cl,(g) →HgCl,(s) AH° = -224.3 kJ (2) Fe(s) + Cl2(g)→FeCl,(s) AH° = -341.8 kJ what is the standard enthalpy change for the reaction: (3) Hg(1) + FeCl,(s)→ →HgCl,(s) + Fe(s) ΔΗ-? kJ Submit Answer Try Another Version 3 item attempts remaining

Using the equations Ca(s) + 1/2 0, (g) → CaO (s) AH° = -450 kJ/mol CO, (g) → C (s) + O, (g) AH° = 394 kJ/mol Determine the enthalpy for the reaction C(s) + 2 CaO(s) → CO, (g) + 2 Ca(s). KJ/mol 1 2 3 6. C 7 8 9. +/- х 100 4.

Use Hess's Law to calculate the enthalpy for this reaction: 4SO3(g) → 4S(s) + 602(g) AH° ??? kJ !! rxn Given the following thermochemical equations: SO2(g)→ S(s) + O2{g) AH° = +296.8 kJ 2SO2(g) + O2(g) → 2SO3(g) AH° = -197.8 kJ