1.

For a first order homogeneous gaseous reaction Ato2B+C, if the total pressure after time t was P_(t) and after a long time (to to oo) was P_(oo) then k in terms of P_(t),P_(oo) and t is

Answer»

`k=2.303/tlog((P_(oo))/(P_(oo)-P_(t)))`
`k=2.303/tlog((2P_(oo))/(P_(oo)-P_(t)))`
`2.303/tlog((2P_(oo))/(3(P_(oo)-P_(YT))))`
None of these

Solution :`Ato2BC+C`
`P_(0)""0""0`
`(P_(0)-x)""2X""x`
`0""2P_(0)""P_(0)`
So `x=((3Pt-P_(alpha))/6),P_(0)=(P_(alpha))/3,K=2.303/txxlog((P_(0))/(P_(0)-x))=2.303/txxlog[(P_(alpha))/3xx6/(3(P_(alpha)-P_(t)))]`
`=2.303/txxlog[(2P_(alpha))/(3(P_(alpha)-P_(t)))]`


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