Question

The work done by a gas during an isothermal expansion from 2 L to 4 L at a constant temperature, with pressure initially at 2 atm, is: (Use R = 8.314 J/mol·K, T = 300 K).

• A. 281 J
• B. 831.4 J
• C. 1247.1 J
• D. 1662.8 J

Hint:

For isothermal processes, use the work formula with natural logarithm of volume ratio.