A vessel has N_2 gas saturated with water vapour at a total pressure of 1 atm. The partial pressure of water vapour is 0.3 atm. The contents of this vessel are completely transferred to another vessel having one third of the capacity of the original volume, at the same temperature. The total pressure of this system in the new vessel is

A vessel has N_2 gas saturated with water vapour at a total pressure o

1.	A vessel has N_2 gas saturated with water vapour at a total pressure of 1 atm. The partial pressure of water vapour is 0.3 atm. The contents of this vessel are completely transferred to another vessel having one third of the capacity of the original volume, at the same temperature. The total pressure of this system in the new vessel is
Answer» 3.0 ATM 1 atm 3.33 atm 2.4 atm Solution :`P_(N_2) = P_("dry GAS") + P_(H_2O)` `1 = P_1 + 0.3 implies P_1 = 0.7 atm` on making volume = `(V_1)/3`, PRESSURE `P_2 = 3P_1 = 3 xx 0.7 = 2.1 atm`. `P_(H_2O)` does not change `:.` NEW `P_(N_2) = 2.1 + 0.3 = 2.4 atm.`