A Sample Consisting Of 1

A sample consisting of 1.00 mol of the oxygen gas is expanded isothermally at 25 °C from 15 L to 30 L (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, ΔU, and ΔH.

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