P2.30 A 1.75 mol sample of an ideal gas for which Cv.m = 3R/2 undergoes the following two-step process: (1) From an initial state of the gas described by T = 15.0°C and P = 5.00 X 104 Pa, the gas undergoes an isothermal ex- pansion against a constant external pressure of 2.50 X 104 Pa until the volume has doubled. (2) Subsequently, the gas is cooled at constant volume. The temperature falls to -19.0°C. Calculate q, w, AU, and AH for each step and for the overall process.

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P2.30 A 1.75 mol sample of an ideal gas for which
Cv.m = 3R/2 undergoes the following two-step process:
(1) From an initial state of the gas described by T = 15.0°C
and P = 5.00 X 104 Pa, the gas undergoes an isothermal ex-
pansion against a constant external pressure of 2.50 × 104 Pa
until the volume has doubled. (2) Subsequently, the gas
is cooled at constant volume. The temperature falls to
-19.0°C. Calculate q, w, AU, and AH for each step and for
the overall process.
Transcribed Image Text:P2.30 A 1.75 mol sample of an ideal gas for which Cv.m = 3R/2 undergoes the following two-step process: (1) From an initial state of the gas described by T = 15.0°C and P = 5.00 X 104 Pa, the gas undergoes an isothermal ex- pansion against a constant external pressure of 2.50 × 104 Pa until the volume has doubled. (2) Subsequently, the gas is cooled at constant volume. The temperature falls to -19.0°C. Calculate q, w, AU, and AH for each step and for the overall process.
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