An Expansion Process on an Ideal Diatomic Gas Has a Linear

question 46

Multiple Choice

An expansion process on an ideal diatomic gas has a linear path between the initial and final states on a pV diagram. The initial pressure is 300 kPa, the initial volume is 0.020 m³, and the initial temperature is 390 K. The final pressure is 160 kPa and the final temperature is 310K. The change in the internal (thermal) energy of the gas is closest to

• A) -3100 J.
• B) -1800 J.
• C) 3100 J.
• D) 1800 J.
• E) 0.00 J.

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Definitions:

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