A container fitted with frictionless massless piston consists of five valves -I,II,III,IVandV. These valves open automatically if pressure exceed over 1.5,2.2,2.5,4.4 and 4.8 atm respectively Under diagram) system is in sate of equilibrium. Piston is now presisted in downward direction very slowly. [Note: Consider the diameter of valve tube negligible and temperature remains constant.]

Select the correct option(s)

Options

A. Valve-II will be opened first.
B. As the piston crosses the valve which will be opened first, the remaining number of moles in container are `(5)/(3)`.
C. Valve-V will be second valve which open.
D. Number of moles will zero as piston crosses Valve-V.

Answer

bc