Question

A reactant (1) forms two products :

$A\overset{\quad k_{1}\quad}{\rightarrow}B,$ Activation Energy Ea1 ;

$A\overset{\quad k_{2}\quad}{\rightarrow}C,$ Activation Energy Ea2 If Ea2 = 2 Ea1, then k1 and k2 are related as :

• A. $k_{2} = k_{1}e^{Ea_{1}/RT}$
• B. $k_{2} = k_{1}e^{Ea_{2}/RT}$
• C. $k_{1} = k_{2}e^{Ea_{1}/RT}$
• D. $k_{1} = k_{2}e^{Ea_{1}/RT}$

Answer 1

Answer: (C)

$k_{1} = k_{2}e^{Ea_{1}/RT}$

Answer 2

$K_{1} = A_{1}e^{- Ea_{1}/RT}$

$K_{2} = A_{2}e^{- Ea_{2}/RT}$

$\frac{K_{1}}{K_{2}} = \frac{A_{1}}{A_{2}}e^{\left( {E_{a}}_{2} - E_{a1} \right)/RT}$

$K_{1} = K_{2}A \times e^{Ea1/RT}$