4. The standard Gibbs energy of formation of PH3(g) is 13.4 kJ/mol at 298 K. Note that the standard state of phosphorus at 298 K is P4(s). If H2(g) and PH3(g) are treated as perfect gases, and their partial pressures are both 2.0 bar: (a) What is the reaction quotient, Q? (b) What is the corresponding reaction Gibbs energy for the reaction corresponding to the standard Gibbs energy of formation of PH3(g)? (c) What is the spontaneous direction of the reaction?
4. The standard Gibbs energy of formation of PH3(g) is 13.4 kJ/mol at 298 K. Note that the standard state of phosphorus at 298 K is P4(s). If H2(g) and PH3(g) are treated as perfect gases, and their partial pressures are both 2.0 bar: (a) What is the reaction quotient, Q? (b) What is the corresponding reaction Gibbs energy for the reaction corresponding to the standard Gibbs energy of formation of PH3(g)? (c) What is the spontaneous direction of the reaction?
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter17: Chemcial Thermodynamics
Section: Chapter Questions
Problem 17.104QE: What is the sign of the standard Gibbs free-energy change at low temperatures and at high...
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