When equal weights of `O_(2)` and `N_(2)` are placed in separate contaniners of equal volume at the same temerature which of the following statement is true ?

Options

A. Both flasks cotain the same number of molecules
B. The pressure in oxygen flask is smaller than the one in the nitrohgen flask
C. More molecules are present in the oxygen flask
D. Molecules in the nitrogen flask are moving slower on the average than ones in the oxygen flask

Answer

B

Explanation

n`(O_(2))=(w)/(325), n(N_(2))=(w)/(28) `
Thus , m`(O_(2)) lt m (N_(2))`.
Hence at constant T and V, `p (O_(2)) lt p (N_(2))`