Hey buds!
The question states "The activation energy in organic reaction is known to be 125 kj/mol. Will this reaction occur at room temperature?" the answer is no but I was wondering how do we come to that solution?
Is it something we memorize or can this be worked out?
Thanks in advance!
HW #4.40
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Justin_Yi_1J
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Re: HW #4.40
An approach to this is looking at the formula for rate constant, 
. We see that the rate constant can never equal 0. So, if we see a very small rate constant, we can say that the reaction does not occur.
In the question, we are given the values for Ea = 125 kj/mol, and T is room temp which is ~298K. Plugging this into the equation for k, we see k = A(1.23x10-22). We can see that for most values of A, k will be very small. We can safely assume that the reaction will not occur at room temperature.
In the question, we are given the values for Ea = 125 kj/mol, and T is room temp which is ~298K. Plugging this into the equation for k, we see k = A(1.23x10-22). We can see that for most values of A, k will be very small. We can safely assume that the reaction will not occur at room temperature.
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Sophia Rawson 1C
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Re: HW #4.40
you can also simply assume, as a common theme, that any activation over 80kj/mol and above will not take place at room temperature.
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