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A. Which of the following statements is false: i) An exothermic reaction is always spontaneous ii) An endothermic reaction is always spontaneous iii) The entropy of the universe is always increasing iv) Temperature can affect the solubility constant 1. i and ii 2. i,ii,iii 3. i and iv 4. iii and iv 5. ii,iii,iv 6. ii and iv

A. Which of the following statements is false: i) An exothermic reaction is always spontaneous ii) An endothermic reaction is always spontaneous iii) The entropy of the universe is always increasing iv) Temperature can affect the solubility constant 1. i and ii 2. i,ii,iii 3. i and iv 4. iii and iv 5. ii,iii,iv 6. ii and iv

Chemistry by OpenStax (2015-05-04)
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter13: Fundamental Equilibrium Concepts
Section: Chapter Questions
Problem 101E: A 0.010 M solution of the weak acid HA has an osmotic pressure (see chapter on solutions and...
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A. Which of the following statements is false: i) An exothermic reaction is always spontaneous ii) An endothermic reaction is always spontaneous iii) The entropy of the universe is always increasing iv) Temperature can affect the solubility constant 1. i and ii 2. i,iii 3. i and iv 4. iii and iv 5. ii,iii,iv 6. ii and iv B. Which of the following statements is true: i) NaOH is a weak base ii) Every strong base corresponds to a weak conjugate acid iii) HBr is a weak acid iv) A buffer solution contains a strong acid and its strong conjugate base. C. Among the following statements, identify those that have an influence on a system in equilibrium when the temperature is raised. i) In an exothermic reaction, the equilibrium favors the reactants. ii) In an exothermic reaction, equilibrium favors the resulting products. iii) In an endothermic reaction, the equilibrium favors the reactants. iv) In an endothermic reaction, the equilibrium favors the resulting products. v) A new equilibrium is established. Choice of answers: 1. i, iv and v 2. i, i and v 3. ii, iv and v 4. ii and iii 5. i and iv
Transcribed Image Text:A. Which of the following statements is false: i) An exothermic reaction is always spontaneous ii) An endothermic reaction is always spontaneous iii) The entropy of the universe is always increasing iv) Temperature can affect the solubility constant 1. i and ii 2. i,iii 3. i and iv 4. iii and iv 5. ii,iii,iv 6. ii and iv B. Which of the following statements is true: i) NaOH is a weak base ii) Every strong base corresponds to a weak conjugate acid iii) HBr is a weak acid iv) A buffer solution contains a strong acid and its strong conjugate base. C. Among the following statements, identify those that have an influence on a system in equilibrium when the temperature is raised. i) In an exothermic reaction, the equilibrium favors the reactants. ii) In an exothermic reaction, equilibrium favors the resulting products. iii) In an endothermic reaction, the equilibrium favors the reactants. iv) In an endothermic reaction, the equilibrium favors the resulting products. v) A new equilibrium is established. Choice of answers: 1. i, iv and v 2. i, i and v 3. ii, iv and v 4. ii and iii 5. i and iv
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