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The gaseous decomposition reaction, A(g)...

The gaseous decomposition reaction, `A(g)rarr2B(g)+C(g)` is observed to first order over the excess of liquid water at `25^(@)C`. It is found that after 10 minutes the total pressure of system is 188 torr and after very long time it is 388 torr. The rate constant of the reaction (in hr`^(-1))` is : [Given : vapour pressure of `H_(2)O` at `25^(@)` is 28 torr (ln`2=0.7`, ln`3=1.1, ln10=2.3)`]

A

`0.02`

B

`1.2`

C

`0.2`

D

none of these

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The correct Answer is:
B
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