For an ideal gas undergoing an isothermal expansion, the work done on the gas is

Question

Quizplus · Accepted Answer

During an isothermal expansion, the temperature of the gas remains constant. The work done on the gas is given by the formula W = nRT ln(V2/V1), where n is the number of moles of the gas, R is the gas constant, T is the temperature, V1 is the initial volume of the gas, and V2 is the final volume of the gas. Since the gas is expanding, V2 is greater than V1, which means that ln(V2/V1) is positive. Therefore, the work done on the gas is negative, which means that the correct choice is D.

For an Ideal Gas Undergoing an Isothermal Expansion, the Work