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The temperature dependence of the rate o...

The temperature dependence of the rate of a chemical reaction can be accurately explained by Arrhenius equation. With the help of Arrhenius equation, calculate the rate constant for the first order reaction `C_2H_5I(g)toC_2H_(4(g))+HI_((G))at700K`.Energy of activation (Ea)for the reaction is `209kjmol_(-1)`and rate constant at 600K is `1.60xx10^(-5)s^(-1)`[Universal gas constant R=`8.314JK^(-1)mol^(-1)]`

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log `k_2= log(1.60xx10^(-5))+(209xx10^3Jmol^(-3)xx100)/(2.303xx8.314xx600xx700)=(0.204-5)+2.599=-2.197`
`therfore k_2`=antilogo-2.197=antilogoof3.803=`6.3535xx10^(-3)s^(-1)`
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A N EXCEL PUBLICATION-CHEMICAL KINETICS-QUESTION BANK
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