Randall D. Knight — Work, Heat, and the First Law of Thermodynamics: Problem 45

The beaker in FIGURE P19.45, with a thin metal bottom, is filled with \(20\text{ g}\) of water at \(20^{\circ}\text{C}\). It is brought into good thermal contact with a \(4000\text{ cm}^3\) container holding \(0.40\text{ mol}\) of a monatomic gas at \(10\text{ atm}\) pressure. Both containers are well insulated from their surroundings. What is the gas pressure after a long time has elapsed? You can assume that the containers themselves are nearly massless and do not affect the outcome.