Q4 A pressure vessel has an internal volume of 0.5 m at atmospheric pressure. It is desired to test the vessel at 300 bars by pumping water into it. The estimated variation in the change of the empty volume of the container due to pressurization to 300 bar is 6 per cent. Calculate the mass of water to be pumped into the vessel to attain the desired pressure level. Given the bulk modulus of elasticity of water as 2 x 109 N/m2.