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 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

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  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

Quizplus · Accepted Answer

Charles's law states that at constant pressure, the volume and temperature of a gas are directly proportional. Using the formula V1/T1=V2/T2, we can solve for V2:
V2 = (V1/T1) x T2 = (10.0 L/298 K) x 384 K = 13.2 L
Therefore, the gas will occupy 13.2 L when the temperature is increased to 384 K while maintaining the pressure at 629 torr. Choice B is the correct answer.

A Fixed Amount of Gas at 25