Answer:
PV = k
Explanation:
Boyles law states that the pressure P of a fixed mass of gas is inversely proportional to its volume V provided that the temperature T is constant (i.e does not vary).
Mathematically, boyle's law can be expressed as;
P = k/V where k us the constant of proportionality. From the equation;
PV = k which is also equivalent to;
P1V1 = P2V2 = PnVn
P1, P2... Pn are the values of the pressures
V1, V2...Vn are the values of the volumes