Boyle's law states the relationship between pressure and volume of a gas. At constant temperature, pressure of a gas is inversely proportional to its volume. PV = k P - pressure, V - volume and k - constant P1V1 = P2V2 parameters for the 1st instance are on the left side and parameters for the 2nd instance are on the right side 146 kPa x 850 mL = P2 x 150 mL P2 = 827.33 kPa
