P4(s) + 5O2(g) → P4O10(s) ∆ G° = -2697.0 kJ/mol2H2(g) + O2(g) → 2h2O(g) ∆ G° = - 457.18 kJ/mol 6H2O(g) + P4O10(s) → 4H3PO4(1) ∆G° = - 428.66 kJ/mol What is the standard free energy of formation, ∆ Gf degree, for phosphoric acid

P4(s) + 5O2(g) → P4O10(s) ∆ G° = -2697.0 kJ/mol2H2(g) + O2(g) → 2h2O(g) ∆ G° = - 457.18 kJ/mol 6H2O(g) + P4O10(s) → 4H3PO4(1) ∆G° = - 428.66 kJ/mol What is the standard free energy of formation, ∆ Gf degree, for phosphoric acid

Chemistry & Chemical Reactivity

9th Edition

ISBN:9781133949640

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter5: Principles Of Chemical Reactivity: Energy And Chemical Reactions

Section5.5: Enthalpy Changes For Chemical Reactions

Problem 1RC: 1. For the reaction 2 Hg(l) + O2(g) → 2 HgO(s), ∆rH° = 181.6 kJ/mol-rxn. What is the enthalpy change...

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Question

P₄(s) + 5O₂(g) → P₄O₁₀(s) ∆ G° = -2697.0 kJ/mol2H₂(g) + O₂(g) → 2h₂O(g) ∆ G° = - 457.18 kJ/mol

6H₂O(g) + P₄O₁₀(s) → 4H₃PO₄(1) ∆G° = - 428.66 kJ/mol

What is the standard free energy of formation, ∆ Gf degree, for phosphoric acid?

a: 11243.3 kj/mol

b: -11243.3 kj/mol

c: 4497.2 kj/mol

d: -4497.2 kj/mol

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