Ch. 17 - Chemical ThermodynamicsSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: Consider the following sets. Which one indicates a  NON-spontaneous reaction. A. ΔH° = -35 kJ; ΔS° = 40 J/K; and the temperature is 80°C. B. ΔH° = -19 kJ; ΔS° = -60 J/K; and the temperature is 10°C. C. ΔH° = -15 kJ; ΔS° = -40 J/K; and the temperature is 150°C. D. ΔH° = 25kJ; ΔS° = 70 J/K; and the temperature is 125°C. E. ΔH° = 20 kJ; ΔS° = 75 J/K; and the temperature is 80°C.

Problem

Consider the following sets. Which one indicates a  NON-spontaneous reaction.

A. ΔH° = -35 kJ; ΔS° = 40 J/K; and the temperature is 80°C.

B. ΔH° = -19 kJ; ΔS° = -60 J/K; and the temperature is 10°C.

C. ΔH° = -15 kJ; ΔS° = -40 J/K; and the temperature is 150°C.

D. ΔH° = 25kJ; ΔS° = 70 J/K; and the temperature is 125°C.

E. ΔH° = 20 kJ; ΔS° = 75 J/K; and the temperature is 80°C.