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1. The enthalpy change associated with forming a solution is represented by the following equation AHsolution = AHsolvent + AHsolute + AHmixture When 10 g of solid NH,NO3 is added to 100 mL of water (both initially at room temperature) the NH,NO3 dissolves and the temperature of the solution decreases. Given those facts which of the following statements are true? (More than one statement could be true) a. AHmixture is a positive number (endothermic) b. AHsolution is a positive number (endothermic) The absolute value |AHsovent + AHsolute| is larger than the absolute value |AHmixture C. d. The temperature decreases because the entropy of the system decreases when the NHẠNO3 dissolves.

1. The enthalpy change associated with forming a solution is represented by the following equation AHsolution = AHsolvent + AHsolute + AHmixture When 10 g of solid NH,NO3 is added to 100 mL of water (both initially at room temperature) the NH,NO3 dissolves and the temperature of the solution decreases. Given those facts which of the following statements are true? (More than one statement could be true) a. AHmixture is a positive number (endothermic) b. AHsolution is a positive number (endothermic) The absolute value |AHsovent + AHsolute| is larger than the absolute value |AHmixture C. d. The temperature decreases because the entropy of the system decreases when the NHẠNO3 dissolves.

Chemistry: Principles and Practice
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
Chapter12: Solutions
Section: Chapter Questions
Problem 12.4QE
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1. The enthalpy change associated with forming a solution is represented by the following equation ΔΗ5oluton ΔΗovent + ΔΗsolute + ΔΗmture When 10 g of solid NH,NO3 is added to 100 mL of water (both initially at room temperature) the NHẠNO3 dissolves and the temperature of the solution decreases. Given those facts which of the following statements are true? (More than one statement could be true) a. AHmixture is a positive number (endothermic) b. AHsolution is a positive number (endothermic) c. The absolute value |AHsolvent + AHsolute| is larger than the absolute value |AHmixture| d. The temperature decreases because the entropy of the system decreases when the NHẠNO3 dissolves.
Transcribed Image Text:1. The enthalpy change associated with forming a solution is represented by the following equation ΔΗ5oluton ΔΗovent + ΔΗsolute + ΔΗmture When 10 g of solid NH,NO3 is added to 100 mL of water (both initially at room temperature) the NHẠNO3 dissolves and the temperature of the solution decreases. Given those facts which of the following statements are true? (More than one statement could be true) a. AHmixture is a positive number (endothermic) b. AHsolution is a positive number (endothermic) c. The absolute value |AHsolvent + AHsolute| is larger than the absolute value |AHmixture| d. The temperature decreases because the entropy of the system decreases when the NHẠNO3 dissolves.
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