A reaction is said to be first order if it's rate is proportional to the concentration of reactant Let us consider a reaction A(g) rarr B(g) + c(g) At t=0 a 00 At time t a-x xx The rate of reaction is given by the expression (dx)/(dt)=k(a-x) and integrated rate equation for a given reaction is represted as k=1/t l n(a/(a-x)) where a=initial concentration and (a-x) = concentration of A after time t. Thermal decomposition of compound X is a first order reaction If 75% of X is decompossed in 100 min, how long will it take for 90% of the compound to decompose? [Given :log 2=0.30]

A reaction is said to be first order if it's rate is proportional to t

1.	A reaction is said to be first order if it's rate is proportional to the concentration of reactant Let us consider a reaction A(g) rarr B(g) + c(g) At t=0 a 00 At time t a-x xx The rate of reaction is given by the expression (dx)/(dt)=k(a-x) and integrated rate equation for a given reaction is represted as k=1/t l n(a/(a-x)) where a=initial concentration and (a-x) = concentration of A after time t. Thermal decomposition of compound X is a first order reaction If 75% of X is decompossed in 100 min, how long will it take for 90% of the compound to decompose? [Given :log 2=0.30]
Answer» 190 MIN `176.66` min `166.66` min `156.66` min Answer :C