A fixed amount of gas at 25.0°C occupies a volume of 10.0 L when the pressure is 629 torr.Use Charles's law to calculate the volume (L)the gas will occupy when the temperature is increased to 121°C while maintaining the pressure at 629 torr.
A)10.9 L
B)13.2 L
C)2.07 L
D)7.56 L
E)48.4 L

Question

Quizplus · Accepted Answer

According to Charles's law, at constant pressure, the volume of a fixed amount of gas is directly proportional to its absolute temperature. Using the formula V1/T1=V2/T2, we can solve for V2:
V2 = (V1/T1) × T2
V2 = (10.0 L/298.15 K) × 394.15 K
V2 = 13.2 L
Therefore, the gas will occupy 13.2 L when the temperature is increased to 121°C while maintaining the pressure at 629 torr. The correct answer is B.

A Fixed Amount of Gas at 25