First law of thermodynamics: During an isothermal process, 5.0 J of heat is removed from an ideal gas. How much work does the gas do during this process?

Question

Quizplus · Accepted Answer

During an isothermal process, the temperature of the gas remains constant. According to the first law of thermodynamics, the change in internal energy of the gas is equal to the heat added to the gas minus the work done by the gas. In this case, heat is removed from the gas, so the change in internal energy is negative. The work done by the gas is therefore positive, and equal to the heat removed.

First Law of Thermodynamics: During an Isothermal Process, 5