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0.780 mol of an ideal gas, at 51.01 °C, is expanded isothermally from 1.94 L to...

0.780 mol of an ideal gas, at 51.01 °C, is expanded isothermally from 1.94 L to 3.14 L.

1. What is the initial pressure of the gas, in atm? 1.07×101 atm You are correct.

2. What is the final pressure of the gas, in atm?

3. How much work is done on the gas, (in J), if the expansion is carried out in two steps by changing the volume irreversibly from 1.94 L to 3.14 L against a constant pressure followed by allowing the pressure to reach its final value while the volume is held constant?

4. How much work is done on the gas, (in J), if the expansion is done under isothermal, reversible conditions?

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