(c) diborane: AG = AHO = Spontaneity spontaneous nonspontaneous Thermicity O endothermic O exothermic Suitability O suitable O not suitable (d) borane: AG = AH = B₂H (9) 2 B(s) + 3 H₂(g) kl/mol kl/mol Spontaneity O spontaneous Thermicity BH₂(g) B(s) + 3/2 H₂ (9) kJ/mol kl/mol nonspontaneous Suitability O endothermic O exothermic O suitable O not suitable

(c) diborane: AG = AHO = Spontaneity spontaneous nonspontaneous Thermicity O endothermic O exothermic Suitability O suitable O not suitable (d) borane: AG = AH = B₂H (9) 2 B(s) + 3 H₂(g) kl/mol kl/mol Spontaneity O spontaneous Thermicity BH₂(g) B(s) + 3/2 H₂ (9) kJ/mol kl/mol nonspontaneous Suitability O endothermic O exothermic O suitable O not suitable

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

Chapter18: Principles Of Chemical Reactivity: Entropy And Free Energy

Section18.5: Entropy Changes And Spontaneity

Problem 3RC

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