21. Cis-trans isomerization of stilbene (1,2-diphenylethylene) is a first-order reversible reaction. Calculate the rate constants of the forward and reverse reactions using the following experimental data:
t, s 0 1830 3816 7260 12006
Share of cis-isomer, % 100 88.1 79.3 70.0 48.5 17.0

If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.