JAMB Physics 2015 Paper

Concept:Boyle’s law describes the relationship between the pressure and volume of a fixed mass of gas at constant temperature.Explanation:At constant temperature, the volume of a given mass of gas is inversely proportional to its pressure.Mathematically, $V \propto \frac{1}{P}$.This can be written as $V = \frac{k}{P}$, where $k$ is a constant.Rearranging gives $PV = k$.For two different conditions of the same gas, the constant remains the same.Thus, $P_1V_1 = P_2V_2$.Answer:Option A: $P_1V_1 = P_2V_2$.