Question

A 2.00 liter plastic container is flexible enough that its volume can change even while it's sealed. If the container has an initial temperature of 25 °C, what will the new volume be if you put it in the freezer, at -4.0 °C? Assume the pressure of the air inside remains constant.

Answer 1

Charles law gives the relationship between volume and temperature of gas.
It states that at constant pressure, volume of gas is directly proportional to temperature.
V/T = k
where V - volume , T - temperature and k - constant

`(V1)/(T1) = (V2)/(T2)`
parameters for the first instance are on the left side and parameters for the second instance are on the right side of the equation
T1 - temperature in Kelvin - 25 °C + 273 = 298 K
T2 - -4 °C + 273 = 269 K
substituting the values in the equation

`(2.00L)/(298 K) = (V)/(269K)`
V = 1.81 L
new volume is 1.81 L