pls solve all parts

4. The metal cylinder of volume 0.012 m' contains compressed gas under a pressure of 18,5 nim is initially at sea lever where the pressure is 1.0 atm and the temperature is 27 "C. The diver then brings the cylinder to the seabed where the pressure is 4.0 atm and the temperature is 20"C. Assume that the volume of the cylinder remains unchanged. Given. atmospheric pressure 1.0 atm = 1.01 x 10' Pa (a) Find the pressure in the cylinder at the seabed the pressure (2 marks) (b) Explain the pressure drop in the cylinder using the kinetic theory (2 marks) (c) The diver then inflates identical balloons each to a volume of 0.015m' by using the cylinder of compressed gas at the seabed, Assume that the balloons are inflated slowly so that the temperature of the gas remains unchanged and the final pressure in the balloon equals that at the seabed. (i) Show that the gas pressure in the cylinder decreases by 5.0 atm after inflating one balloon. (2 marks) (ii) Hence, find the total number of balloons that the diver can inflate completely. (2 marks)