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: For the reaction A2(g) + B(s) → A2B(g) ΔH° > 0 and ΔS° > 0 Which of the following statements is true? A. The reaction is spontaneous at low temperatures. B. The reaction is spontaneous at all temperatures. C. ΔH° becomes more positive as temperature increases. D. The reaction is spontaneous at high temperatures. E. The reaction is non-spontaneous at all temperatures.

Problem

For the reaction A2(g) + B(s) → A2B(g)

ΔH° > 0 and ΔS° > 0

Which of the following statements is true?

A. The reaction is spontaneous at low temperatures.

B. The reaction is spontaneous at all temperatures.

C. ΔH° becomes more positive as temperature increases.

D. The reaction is spontaneous at high temperatures.

E. The reaction is non-spontaneous at all temperatures.