The reaction is first order

CHEMISTRY · Single correct · CBSE · Chemistry · Chemical Kinetics · Chemical Kinetics

Problem

The reaction

\mathrm{A(s)\rightarrow2B(g)+C(g)}

is first order. The pressure after

20\text{ min}

and after a very long time are

150\text{ mm Hg}

and

225\text{ mm Hg}

, respectively. The rate constant and pressure after

40\text{ min}

are: (a)

0.05\ln1.5\text{ min}^{-1}

200\text{ mm Hg}

(b)

0.5\ln2\text{ min}^{-1}

300\text{ mm Hg}

(c)

0.05\ln3\text{ min}^{-1}

300\text{ mm Hg}

(d)

0.05\ln3\text{ min}^{-1}

200\text{ mm Hg}