1.Calculate the internal energy of a system if 450 J of heat energy is absorbed by the system and if 250 J of work is done on the system. 2. What is the change in the internal energy of the system if the surroundings gain 340 J of heat energy and if 570 J of work is performed by the surroundings? 3. In a container the gas expanded from 45 L to 70 L against a pressure of 2.75 atm. How much work is performed by the gas? 4. How much work is required to compress a gas from 78 L to 25 Lat a

1.Calculate the internal energy of a system if 450 J of heat energy is absorbed by the system and if 250 J of work is done on the system. 2. What is the change in the internal energy of the system if the surroundings gain 340 J of heat energy and if 570 J of work is performed by the surroundings? 3. In a container the gas expanded from 45 L to 70 L against a pressure of 2.75 atm. How much work is performed by the gas? 4. How much work is required to compress a gas from 78 L to 25 Lat a

World of Chemistry

7th Edition

ISBN:9780618562763

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter10: Energy

Section: Chapter Questions

Problem 61A

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