The figure shows initial conditions of a uniform cylinder with frictionless pistons A and B held in shown position by mechanical stoppers.

If the mechanical stoppers holding piston A and B as shown in figure are removed and in the mean time `N_(2)O_(4) and O_(3)` gases separately undergo following reaction completely [Assume that temperature remains constant]
`N_(2)O_(4) rarr 2NO_(2)`
`2O_(3) rarr 3O_(2)`
Which statement is correct after all the pistons have attained their final positions (assume `sigma` to be same for all gases)?

Options

A. `Z_(11)` will be highest for molecules of gas in compartment 1
B. Mean free path will be longest for molecules of gas in compartments2
C. `Z_(11)` will be same for all gases
D. Mean free path will be same for molecules of gas in all compartments

Answer

d