A sample of nitrogen gas had a volume of 500. mL, a pressure in its closed container of 740 torr, and a temperature of 25 °C. What was the new volume of the gas when the temperature was changed to 50 °C and the new pressure was 760 torr, if the moles are constant?

Question

Quizplus · Accepted Answer

Using the combined gas law: (P1 * V1) / T1 = (P2 * V2) / T2, where P is pressure, V is volume, and T is temperature in Kelvin. Convert temperatures to Kelvin (25°C = 298K, 50°C = 323K) and solve for V2: V2 = (P1 * V1 * T2) / (P2 * T1) = (740 torr * 500 mL * 323 K) / (760 torr * 298 K) ≈ 530 mL.

A Sample of Nitrogen Gas Had a Volume of 500