In which one of the following, does the given amount of chlorine exert the least pressure in a vessel of capacity `1" cm"^(3)` at 273 K ?

Options

A. `0.0355` g
B. `0.071 g`
C. `6.023xx10^(21)` molecules
D. `0.02` mole

Answer

A

Explanation

`Ppropn` (no. of moles)
Molecular weight of chlorine `=71` g
`0.0355g=5xx10^(-4)` moles
`0.071g=1xx10^(-3)` moles
`6.023xx10^(21)` molecules `=0.01` moles `0.02` moles `=0.02` moles