Question

If a 25.0 mL of gas is collect at 20.0°C in a closed flexible container, what volume would the gas occupy if the temperature is raised to 45.0°C?

Answer 1

`"27.1 mL"`

Explanation:

Charles Law: When the pressure on a sample of a dry gas is held constant, the Kelvin temperature and the volume will be directly related.

Mathematically,

`V_1/T_1 = V_2/T_2 color(white)(xx)[∵ V prop T]`

`"25.0 mL"/"293 K" = V_2/"318 K"`

`V_2 = "25.0 mL" xx (318 cancel"K")/(293 cancel"K") = "27.1 mL"`