Chemistry, 20.03.2020 10:18 amarionlucas06
The rate at which a certain Australian tree cricket chirps is 194/min at 28°C, but only 47.6/min at 5°C, From these data calculate the energy of activation for the chirping process. (Hint: the ratio of the rates is equal to the ratio of the rate constants.) Enter in units of kJ/mol.
Answers: 1
![\log (\frac{K_2}{K_1})=\frac{Ea}{2.303\times R}[\frac{1}{T_1}-\frac{1}{T_2}]](/tpl/images/0555/9142/6d953.png)
= rate of reaction at 
= 194/min
= rate of reaction at 
= 47.6 /min
= activation energy 
![\frac{194}{47.6}=\frac{E_a}{2.303\times 8.314}[\frac{1}{278}-\frac{1}{301}]](/tpl/images/0555/9142/5b0c0.png)
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