Decomposition of A is a first order reaction at T ( K ) and is given by A ( g ) → B ( g )+ C ( g ). In a closed 1 L vessel, 1 bar A(g) is allowed to…

Decomposition of A is a first order reaction at $\displaystyle \mathrm{T}(\mathrm{K})$ and is given by $\displaystyle \mathrm{A}(\mathrm{g}) \longrightarrow \mathrm{B}(\mathrm{g})+\mathrm{C}(\mathrm{g})$. In a closed $\displaystyle 1$ L vessel, $\displaystyle 1$ bar A(g) is allowed to decompose at T(K). After $\displaystyle 100$ minutes, the total pressure was $\displaystyle 1.5$ bar. What is the rate constant (in $\displaystyle \min ^{-1}$ ) of the reaction ? $\displaystyle (\log 2=0.3)$