00:01
The rate of reaction depends on temperature according to the equation natural log of k2 over k1 equals negative ea over r times 1 over t2 minus 1 over e1 where k is the is the rate constant so for example k2 is the rate constant at t2 where t is temperature that is absolute temperature that means it has to be expressed in kelvin ea is the activation energy this is the amount minimum amount of energy that the reaction needs to possess so that the reaction can start and your r is gas constant you know the value for this later as we will substitute or as we will go on with a question so rate constant so in this problem we're given that the activation energy for a certain reaction is 38 kilojoules per mole.
01:08
It is found out that it's rate constant at temperature of 249 kelvin.
01:16
So let's have that as k1 is equal to 1 .6 times 10 to the power of 2.
01:25
And the unit is liter, then mole to the negative 1, second to the negative 1.
01:32
So again, this is a temperature of 249 kelvin.
01:38
We wish to find the following.
01:40
For letter a, we want to know the overall order of the reaction.
01:48
So the order of the reaction tells us the extent to which the rate depends on the concentration of these reactant.
01:57
And for letter b, we want to find the rate constant, temperature of 436 kelvin.
02:07
So we'll find the rate, overall rate of the reaction from the unit of the rate constant...