Question: An ideal gas initially at 20oC and 200 kPa has a volume of 4 L. It undergoes a quasi-static, isothermal expansion until its pressure is

An ideal gas initially at 20oC and 200 kPa has a volume of 4 L. It undergoes a quasi-static, isothermal expansion until its pressure is reduced to 100 kPa. Find

(a) The work done by the gas, and

(b) The heat added to the gas during the expansion.

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