8g of `O_2` 14g of `N_2` and 22g of `CO_2` is mixed in a container of 10L capacity at `27^@C`. The pressure exerted by the mixture in terms of atmospheric pressure is

Options

A. 1.4atm
B. 2.5atm
C. 3.07atm
D. 8.7atm

Answer

C

Explanation

As `P=(n_1RT+n_2RT+n_3RT)/V= (n_1+n_2+n_3) (RT)/V`
`=(8/32+14/28+22/44) times (0.82 times 300)/10=3.075 atm`