A) evaluating rate constant at standard temperature
B) evaluating velocities of reaction at two different temperatures
C) evaluating rate constants at two different temperatures
D) changing concentration of reactants
Correct Answer: C
Solution :
| [c] Activation energy can be calculated by using Arrhenius equation. The Arrhenius equation is- |
| \[\log \frac{{{k}_{2}}}{{{k}_{1}}}=\frac{{{E}_{a}}}{2.303\,R}\left[ \frac{{{T}_{2}}-{{T}_{1}}}{{{T}_{1}}{{T}_{2}}} \right]\] |
| where \[{{k}_{1}}\] and \[{{K}_{2}}=\] rate constant at two different temperatures |
| \[{{E}_{a}}=\] Activation energy |
| \[R=\] Gas constant |
| So, activation energy of a chemical reaction can be determined by evaluating rate constants at two different temperatures. |
You need to login to perform this action.
You will be redirected in
3 sec
