An ideal gas is enclosed in a cylinder which has a movable piston. The gas is heated, resulting in an increase in temperature of the gas, and work is done by the gas on the piston so that the pressure remains constant. a) Is the work done by the gas negative, positive or zero? b) From a microscopic view, how is the internal energy of the gas molecules affected? c) Is the heat less than, greater than or equal to the work? Explain you answer.

Automotive Technology: A Systems Approach (MindTap Course List)
6th Edition
ISBN:9781133612315
Author:Jack Erjavec, Rob Thompson
Publisher:Jack Erjavec, Rob Thompson
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Problem 2RQ: In what four states does matter exist? Cite examples of each.
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An ideal gas is enclosed in a cylinder which has a movable piston. The gas is heated, resulting in 
an increase in temperature of the gas, and work is done by the gas on the piston so that the 
pressure remains constant. 
a) Is the work done by the gas negative, positive or zero? 
b) From a microscopic view, how is the internal energy of the gas molecules affected? 
c) Is the heat less than, greater than or equal to the work? Explain you answer.

 

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