Consider the expansion of a gas at constant pressure in a water-cooled piston–cylinder system. The constant pressure is achieved by controlled input of energy as heat Q to the gas. Treating the gas as ideal (see Exercise 2.10), derive expressions for the energy output as work W and energy input as heat Q as a function of the expansion ratio V₂/V₁.

Data From Exercise 10

Consider the expansion of a gas at constant temperature in a water-cooled piston– cylinder system. The constant temperature is achieved by controlled input of energy as heat Q to the gas. Treating the gas as ideal, derive expressions for the energy output as workW and energy input as heat Q as a function of the expansion ratio V₂/V₁.