A gas is expanded from an initial volume of 20.5 L at 0.92 atm at 23 °C to a final volume of 34.6 L. During the expansion the gas cools to 12 °C. What is the final pressure?

Question

Quizplus · Accepted Answer

Using the combined gas law: (P1 * V1) / T1 = (P2 * V2) / T2, where temperatures are in Kelvin. Convert temperatures: 23°C = 296K, 12°C = 285K. Solve for P2: P2 = (P1 * V1 * T2) / (V2 * T1) = (0.92 atm * 20.5 L * 285 K) / (34.6 L * 296 K) ≈ 0.52 atm.

A Gas Is Expanded from an Initial Volume of 20