Assuming that the pressure and quantity of a gas sample remain constant, what will be the final volume of a 4.86 L sample of a gas originally at 281 °C when cooled to 225 °C?

Question

Quizplus · Accepted Answer

According to Charles's Law, the volume of a gas is directly proportional to its temperature. Therefore, we can use the following equation to solve the problem:
V1/T1 = V2/T2
Where V1 is the initial volume (4.86 L) and T1 is the initial temperature (281 °C converted to Kelvin = 554 K). V2 is the final volume (unknown) and T2 is the final temperature (225 °C converted to Kelvin = 498 K).
Plugging in the values and solving for V2:
4.86 L/554 K = V2/498 K
V2 = (4.86 L/554 K) x 498 K
V2 = 4.37 L
Therefore, the final volume of the gas is 4.37 L (choice B).

Assuming That the Pressure and Quantity of a Gas Sample