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

Options

A. 0.0355 g
B. 0.071 g
C. `6.023 xx 10^(21)` molecule
D. 0.02 mole

Answer

A

Explanation

(A) `0.0355 g Cl_(2) = (0.0355)/(71)` moles
(B) `0.71 g Cl_(2) = (0.71)/(71) =` mole `= 10^(-2)` mole
(C) `6.023 xx 10^(21)` molecules `= (6.023 xx 10^(21))/(6.023 xx 10^(23)) = 0.01` mole
(D) 0.02 mole