A box of $1m^3$ is filled with nitrogen at 1.5atm at 300K.The box has a hole of area $0.01mm^2$.How much time is required for pressure to reduce by 0.1atm.If pressure outside is 1atm

Question

$\begin{array}{1 1}(A)\;1.4\times 10^4sec\\(B)\;2.8\times 10^4sec\\(C)\;0.7\times 10^4sec\\(D)\;1.4\times 10^5sec\end{array}$