In a decompostion reaction, the reaction decays 21.2 times more rapidly at 22°C then at 4 °C. What is the overall activation energy (kJ/mol) of the process ?

Explanation:

The given data is as follows.

      = (4 + 273) K = 277 K

      = (22 + 273) K = 295 K

      = 21.2

Formula to calculate activation energy will be as follows.

      3.05 =

          = 115116.914 J/mol

or                     = 115.116 kJ/mol

Thus, we can conclude that overall activation energy (kJ/mol) of the process is 115.116 kJ/mol.

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min