Consider a first order gas phase decomp...

Consider a first order gas phase decomposition reaction given below:
`A(g) to B_(g) + C_(g)`
The initial pressure of the system before decomposition of A was `p_(i)`. After lapse of time `t'`. Total pressure of the system increased by x units and became `P_(t)`. the rate constant k for the reaction is given as

`k=2.303/t log p_(1)/(p_(1)-x)`

`k=2.303/t log p_(i)/(2p_(i)-p_(i))`

`k=2.303/t log p_(i)/(2p_(i)+p_(i))`

`k=2.303/t log p_(i)/(p_(i)+x)`

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