How much faster would a reaction proceed...

How much faster would a reaction proceed at `25^(@)C` than at `0^(@)C` if the activation energy is 65 kJ?

2 times

5 times

11 times

16 times

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The rate of reaction ((dx)/(dt)) varies with nature, physical state and concentration of reactants, temperature, exposure to light and catalyst, whereas rate constant (K) varies with temperature and catalyst only. The rate constant K is given as K=Ae^(-E_(a)//RT) where A is Arrhenius parameter or pre-exponential factor and E_(a) is energy of activation. The minimum energy required for a reaction is called threshold energy and the additional energy required by reactant molecules to attain threshold energy level is called energy of activation. How much faster would a reaction proceed at 25^(@)C than at 0^(@)C if the activation energy is 2 cal?

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A 1st order reaction is 50% complete in 30 minute at 27^(@)C and in 10 minute at 47^(@)C . Calculate the: (a) Rate constant for reaction at 27^(@)C and 47^(@)C . (b) Energy of activation for the reaction. (c ) Energy of activation for the reverse reaction if heat of reaction is -50 kJ mol^(-1) .

A first order reaction is 50% completed in 30 min at 27^(@)C and in 10 min at 47^(@)C . Calculate the reaction rate constants at 27^(@)C and the energy of activation of the reaction in kJ mol^(-1) .

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