problem19_11

University Physics with Modern Physics with Mastering Physics (11th Edition)

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19.11: The type of process is not specified. We can use W Q U - = because this applies to all processes. Q is positive since heat goes into the gas; J 1200 + = Q W positive since gas expands; J 2100 + = W J 900 J 2100 - J 1200 - = = U We can also use ( 29 T R
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Unformatted text preview: = ∆ 2 3 since this is true for any process for an ideal gas. °-= ⋅-= ∆ = ∆ C 4 . 14 K) mol J 5 mol)(8.314 3(5.00 J) 900 ( 2 3 2 nR U T C 113 C 14.4 C 127 1 2 ° = °-° = ∆ + = T T T...
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  • gas expands, C° 3nR

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