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What is the fraction of molecules having...

What is the fraction of molecules having energy equal to or greater than activation energy, `E_a`? What is this quantity called ?

A

`x=-(E_a)/(RT)`

B

`x=e^(E_a//RT)`

C

`log x=- E_a/(2.303 RT)`

D

`x=10^(-E_a//RT)`

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