Three insulated vessels of equal volumes `V` are connected by thin tubes that can transfer gas but do not transfer heat. Initially all the vessels are filled with the same type of gas at a temperature `T_(0)` and pressure `P_(0)`. Then the temperature in the first vessel is doubled and the temperature in the second vessel is tripled. The temperature in the thin vessel remains unchanged. If initial pressure is `77 cm` of Hg, then find the final pressure (in cm of Hg ) in the system.

Answer

126