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A sample consisting of 2.00 mol He is expanded isothermally at 22°C from 22.8 dm³ to 31.7 dm³ (a) reversibly (b) against a constant external pressure equal to the final pressure of the gas, and (c) freely (against zero external pressure.) For the three processes, calculate q, w, AU and AH.

A sample consisting of 2.00 mol He is expanded isothermally at 22°C from 22.8 dm³ to 31.7 dm³ (a) reversibly (b) against a constant external pressure equal to the final pressure of the gas, and (c) freely (against zero external pressure.) For the three processes, calculate q, w, AU and AH.

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A sample consisting of 2.00 mol He is expanded isothermally at 22°C from 22.8 dm³ to 31.7 dm³ (a) reversibly (b) against a constant external pressure equal to the final pressure of the gas, and (c) freely (against zero external pressure.) For the three processes, calculate q, w, AU and AH.
Transcribed Image Text:A sample consisting of 2.00 mol He is expanded isothermally at 22°C from 22.8 dm³ to 31.7 dm³ (a) reversibly (b) against a constant external pressure equal to the final pressure of the gas, and (c) freely (against zero external pressure.) For the three processes, calculate q, w, AU and AH.
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