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A student runs a reaction in a closed system. In the course of the reaction, 64.7 kJ of heat is released to the surroundings and 14.3 kJ of work is done on the system. What is the change in internal energy (AU) of the reaction? 1. -79.0 kJ 2. 50.4 kJ 3. 79.0 kJ 4.-50.4 kJ 5.90.4kJ

A student runs a reaction in a closed system. In the course of the reaction, 64.7 kJ of heat is released to the surroundings and 14.3 kJ of work is done on the system. What is the change in internal energy (AU) of the reaction? 1. -79.0 kJ 2. 50.4 kJ 3. 79.0 kJ 4.-50.4 kJ 5.90.4kJ

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter5: Principles Of Chemical Reactivity: Energy And Chemical Reactions
Section5.4: The First Law Of Thermodynamics
Problem 5.5CYU: Nitrogen gas (2.75 L) is confined in a cylinder under constant atmospheric pressure (1.01 105...
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A student runs a reaction in a closed system. In the course of the reaction, 64.7 kJ of heat is released to the surroundings and 14.3 kJ of work is done on the system. What is the change in internal energy (AU) of the reaction? 1. -79.0 kJ 2. 50.4 kJ 3. 79.0 kJ 4.-50.4 kJ 5.90.4kJ
Transcribed Image Text:A student runs a reaction in a closed system. In the course of the reaction, 64.7 kJ of heat is released to the surroundings and 14.3 kJ of work is done on the system. What is the change in internal energy (AU) of the reaction? 1. -79.0 kJ 2. 50.4 kJ 3. 79.0 kJ 4.-50.4 kJ 5.90.4kJ
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