00:01
Hi students let me explain you the question here first order reaction okay certain first order reaction so it having the rate constant the rate constant that is 1 .34 into 10 to the power of minus 2 and inverse at temperature 22 degrees centigrade so what is the value of k at 55 degrees centigrade if the energy of activation so here, energy of activation is equal to 95 .7 kilojoules per mole.
00:45
So this is the given data.
00:47
We have to find out the value of k at 55 degrees centigrade.
00:57
So here, what is the first order reaction? so first order reaction, it is nothing but it is a chemical reaction.
01:08
It is a chemical reaction.
01:11
Rate of reaction the rate of reaction is directly proportional to the concentration of reacting substance concentration of reacting substance is known as first -order reaction so here coming to the solution so here what they have given rate constant rate constant value 1 .34 into 10 to the power of minus 2 second inverse then temperature t 22 degrees centigrade.
01:46
So 22 plus 273 that is equal to 295 kelvin's.
01:52
And we have to determine rate constant.
01:59
So let it be k2 at temperature 2 that is 55 degrees centigrade.
02:06
So 55 plus 273 that is equal to 328 kelvin.
02:11
And here they have given activation energy.
02:15
Activation energy.
02:18
So the activation energy it is ea activation energy that is 95 .7 kilojoules per mole...