Boyle’s law gives the relationship between pressure and volume of gases. It states that at constant temperature the pressure of gas is inversely proportional to volume of gas. PV = k Where P is pressure V is volume and k is constant P1V1 = P2V2 Parameters at STP are on the left side and parameters for the second instance are on the right side of the equation P1 - standard pressure - 1.0 atm Substituting the values in the equation 1.0 atm x 5.00 L = P x 15.0 L P = 0.33 atm New pressure is 0.33 atm
