In the equation k = ZAB e-Ea/RT, e-Ea/RT represents
The fraction of molecules with energies equal to or greater than Ea
Activation energy
Threshold energy
Total collisions take place in the reaction
e-Ea/RT represents the fraction of molecules with energies equal to or greater than Ea.
In the equation k = PZAB e-Ea/RT, P is known as: