The following data were obtained during the first order thermal decomposition of a gas A at constant volume: A ( g ) → 2 B ( g )+ C ( g ) The rate…

The following data were obtained during the first order thermal decomposition of a gas A at constant volume : $$\mathrm{A}(\mathrm{~g}) \rightarrow 2 \mathrm{~B}(\mathrm{~g})+\mathrm{C}(\mathrm{~g}) $$

S.No.	Time/s	Total pressure/(atm)
1.	$\displaystyle 0$	$\displaystyle 0.1$
2.	$\displaystyle 115$	$\displaystyle 0.28$

The rate constant of the reaction is $\displaystyle \_\_\_\_$ $\displaystyle \times 10^{-2} \mathrm{~s}^{-1}$ (nearest integer)