Higher free energy of activation of a chemical reaction (at a given temperature) implies ____________________?

Related Mcqs:

For a first order isothermal chemical reaction in a porous catalyst, the effectiveness factor is 0.3. The effectiveness factor will increase if the____________________?

A. Catalyst size is reduced or the catalyst diffusivity is reduced B. Catalyst size is reduced or the catalyst diffusivity is increased C. Catalyst size is increased or the catalyst diffusivity is reduced D. Catalyst size is increased or the catalyst diffusivity is increased...

A catalyst promoter_________________?

A. Improves the activity of a catalyst B. Acts as a catalyst support C. Itself has very high activity D. All A., B. and C....

Space time in flow reactor is____________________?

A. Usually equal to the residence time B. The reciprocal of the space velocity C. A measure of its capacity D. Both A. and B....

‘Unreacted core model’ represents the reaction involving ______________________?

A. Combustion of coal particles B. Roasting of sulphide ores C. Manufacture of carbon disulphide from elements D. None of these...

Which of the following is not a unit of reaction rate ?

A. Moles for med/(surface of catalyst) (time) B. Moles formed/volume of reactor) (time) C. Mole formed/volume of catalyst) (time) D. None of these...