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A catalyst can not increase the rate of a reaction W. by lowering the activation energy of the reverse reaction X. by lowerin
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Answer

All of these are ways that a catalyst might act to increase the rate of the reaction

Explanation

Arrhenius equation for rate constant is

k = Ae-Ea/RT

where,

A = frequency factor

Ea = Activation energy

R = gas constant , 8.314J/K mol

T = Temperature in K

From this equation we know that , by increasing frequency factor (factor of collisions between molecules) rate constant is increased and by decreasing activation energy rate constant is increased.

By adding catalyst , the reaction path way is changed and because of change in reaction path way activation energy for both forward and reverse rection decreased and freqecy factor also increased.

Therefore,

So, a catalyst increase rate of reaction by w,x,y and z.

  

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