Two flasks A and B of equal volume contain 2 g of `H_2` and 2g of `N_2` respectively at the same temperature and pressure. The number of molecules in flask A is

Options

A. same as the number of molecules in flask B
B. half the number of molecules in flask B
C. 7 times the number of molecules in flask B
D. 14 times the number of molecules in flask B

Answer

D

Explanation

Number of molecules in the flask A is
`(6xx10^(23))/(2)xx2=6xx10^(23)`
Number of molecular in the flask B is
`(6xx10^(23))/(28) xx2 = (6xx10^(23))/(14)`
Flask A contains 14 times the number of molecules in flask B.