Question

The volume of a fixed mass of gas at 100 degrees Celsius is 78cm³. Calculate it's volume when the temperature is reduced to one quarter of it's original temperature at a constant pressure.

Answer 1

PV=kT

Since P is constant, V/T is also constant. (V/4)/(T/4) = V/T
so, you get 1/4 the volume, or 78/4 cm^3