If `1L` of `O_(2)` at `15^(@)C` and `750 mm` pressure contains `N` molecules, the number of molecules in 2 litre of `SO_(2)` under the same conditions of temperature and pressure will be

Options

A. `N//2`
B. N
C. 2 N
D. 4 N

Answer

C

Explanation

According to Avogadro 's law " equal volumes of all gases contain equal number of molecules under similar conditions of temperature and pressure . " Thus , if 1 L of one gas contains N molecules , 2 L of any gas under similar conditions will contain 2 N molecules.