A frictionless piston filled with 0.04 mol of an ideal gas expands isothermally from 50 mL to 375 mL at 37°C. During this volume change, it absorbs 208 J of thermal energy from the surroundings. Calcu

Question

A frictionless piston filled with 0.04 mol of an ideal gas expands isothermally from 50 mL to 375 mL at 37°C. During this volume change, it absorbs 208 J of thermal energy from the surroundings. Calculate the work done by the system.

Prashant Kotian · Accepted Answer

Correct answer: A. Because the process is maintained at a constant temperature, it is an isothermal process. For an ideal gas, internal energy depends only on temperature, so . By the First Law (), .

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