1.

For the reaction : 2A(g) rarr 3B(g) + C(l), the rate law is : r=-(1)/(2).(dP_(A))/(dt)=K.P_(A) The reaction is performed at constant volume and temperature, starting with only pure A(g). If P_(T) and P_(oo) are the total pressure of system at t = (oo), and P_(0) is the vapour pressure of C(l), then the rate constant of reaction may be expressed as :

Answer»

`k=(1)/(T_(min))."ln"(P_(OO))/(P_(oo)-P_(T))`
`k=(1)/(2T_(min))."ln"(P_(oo))/(P_(oo)-P_(T))`
`k=(1)/(2T_(min))."ln"(P_(oo)-P_(0))/(3(P_(oo)-P_(T)))`
`k=(1)/(2T_(min))."ln"(P_(oo)-P_(0))/(P_(oo)-P_(T))`

Answer :C


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