2 2. (15.6) The pressure in an ideal gas is cut in half slowly, while being kept in a container with rigid walls. Inthe process, 465 kJ of heat left the gas. (a) How much work was done during this process? (b) What wasthe change in internal energy of the gas during this process?3. (15.7) In an engine, an almost ideal gas is compressed adiabatically to half its volume. In doing so, 2630 Jof work is done on the gas. (a) How much heat flows into or out of the gas? (b) What is the change ininternal energy of the gas? (c) Does its temperature rise or fall?

Answered: Image /qna-images/answer/cb72abf1-b809-4202-aca3-94739b0bcc96.jpg

2. (15.6) The pressure in an ideal gas is cut in half slowly, while being kept in a container with rigid walls. In the process, 465 kJ of heat left the gas. (a) How much work was done during this process? (b) What was the change in internal energy of the gas during this process?

2. (15.6) The pressure in an ideal gas is cut in half slowly, while being kept in a container with rigid walls. In the process, 465 kJ of heat left the gas. (a) How much work was done during this process? (b) What was the change in internal energy of the gas during this process?

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter20: The First Law Of Thermodynamics

Section: Chapter Questions

Problem 20.12OQ: If a gas is compressed isothermally, which of the following statements is true? (a) Energy is...

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Concept explainers

First law of Thermodynamics

The word thermodynamics consists of two words: thermo- and dynamics. Dynamics means the study of motion. The field of thermodynamics is all about the study of the movement of heat. In a more meaningful way, it is stated as the study of the transfer of energy. Energy transfer is something that we encounter in day-to-day life. Automobiles, chemical reactions, refrigerators, and power generators work on the basis of thermodynamic principles.

Question

2. (15.6) The pressure in an ideal gas is cut in half slowly, while being kept in a container with rigid walls. In
the process, 465 kJ of heat left the gas. (a) How much work was done during this process? (b) What was
the change in internal energy of the gas during this process?
3. (15.7) In an engine, an almost ideal gas is compressed adiabatically to half its volume. In doing so, 2630 J
of work is done on the gas. (a) How much heat flows into or out of the gas? (b) What is the change in
internal energy of the gas? (c) Does its temperature rise or fall?

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