The number of molecules with energy greater than the threshold energy for a reaction increases five fold by a rise of temperature from 27 o C to 42 o C . Its energy of activation in J / mol is _________ (Take ln   5 = 1 . 6094 ;   R = 8 . 314   J   mol - 1 )

Question

The number of molecules with energy greater than the threshold energy for a reaction increases five fold by a rise of temperature from 27 o C to 42 o C . Its energy of activation in J / mol is _________ (Take ln &#160; 5 = 1 . 6094 ; &#160; R = 8 . 314 &#160; J &#160; mol - 1 )

Aicharya · Accepted Answer

k = Ae - Ea RT ln K 2 K 1 = Ea R 1 T 1 - 1 T 2 ln ( 5 ) = Ea 8 . 314 1 300 - 1 315 1 . 6094 = Ea 8 . 314 15 300 &#215; 315 Ea = 84297 &#160; J

The number of molecules with energy greater than the threshold energy for a reaction increases five fold by…

Solution