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2CH4(g)→C2H6(g)+H2(g) Calculate ΔG∘rxn at 25 ∘C. 2NH3(g)→N2H4(g)+H2(g) Calculate ΔS∘rxn at 25 ∘C. N2(g)+O2(g)→2NO(g) calculate ΔH∘rxn and...

2CH4(g)→C2H6(g)+H2(g) Calculate ΔG∘rxn at 25 ∘C.

2NH3(g)→N2H4(g)+H2(g) Calculate ΔS∘rxn at 25 ∘C.

N2(g)+O2(g)→2NO(g) calculate ΔH∘rxn and Calculate ΔG∘rxn at 25 ∘C.

2KClO3(s)→2KCl(s)+3O2(g) calculate ΔH∘rxn .and Calculate ΔG∘rxn at 25 ∘C.

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Expert Solution

2CH4(g)→C2H6(g)+H2(g) Calculate ΔG∘rxn at 25 ∘C.

dG = Gproducts - Greactants

dG = (C2H6 + H2) - (2CH4)

dG = -32.0 + 0 - 2(-50.5) kJ/mol

dG = 69 kJ/mol

2NH3(g)→N2H4(g)+H2(g) Calculate ΔS∘rxn at 25 ∘C.

dS = Sprod - Sreact

dS = N2H4 + H2 - (2NH3)

dS = (121.2 + 130.7) - (2*(192.8))

dS = -133.7 J/molK

N2(g)+O2(g)→2NO(g) calculate ΔH∘rxn and Calculate ΔG∘rxn at 25 ∘C.

dH = Hprod - Hreact

dH = 2*NO - (N2 + O2)

dH = 2*91.3 - (0 + 0)

dH = 182.6 kJ/mol

fo dG

dG = Gprducts - Greactands

dG = 2*NO - (N2 + O2)

dG = 2*87.6 - (0 +0)

dG = 175.2 kJ/mol

2KClO3(s)→2KCl(s)+3O2(g) calculate ΔH∘rxn .and Calculate ΔG∘rxn at 25 ∘C.

dH= Hprod - Hreact

dH = (2KCl + 3O2) - (2KClO3)

dH = (2*-436.5+3*0 -(2*-397.7)

dH = -77.6 kJ/mol

dG= Gprod - Greact

dG = (2KCl + 3O2) - (2KClO3)

dG = 2*-408.5 + 3*0 - (2*-296.3)

dG = -224.4 kJ/mol

queen_honey_blossom answered 1 year ago

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