Chemical Reaction Engineering A catalyst loses its activity due to Loss in surface area of the active component Agglomeration of metal particles caused by thermal sintering of the solid surface All of these Covering of the catalytic active sites by a foregin substance Loss in surface area of the active component Agglomeration of metal particles caused by thermal sintering of the solid surface All of these Covering of the catalytic active sites by a foregin substance ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A second order reaction of the form A + B → C is called a pseudo-first order reaction, when CA0 > CB0 CB0 > CA0 CA0 = CB0 CB0 ≥ CB0 CA0 > CB0 CB0 > CA0 CA0 = CB0 CB0 ≥ CB0 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a first order isothermal chemical reaction in a porous catalyst, the effectiveness factor is 0.3. The effectiveness factor will increase if the Catalyst size is increased or the catalyst diffusivity is reduced Catalyst size is reduced or the catalyst diffusivity is increased Catalyst size is reduced or the catalyst diffusivity is reduced Catalyst size is increased or the catalyst diffusivity is increased Catalyst size is increased or the catalyst diffusivity is reduced Catalyst size is reduced or the catalyst diffusivity is increased Catalyst size is reduced or the catalyst diffusivity is reduced Catalyst size is increased or the catalyst diffusivity is increased ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Photo-chemical reactions occur in presence of Monochromatic radiation only Sunlight Solid catalysts Darkness Monochromatic radiation only Sunlight Solid catalysts Darkness ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Arhenious equation shows the variation of __________ with temperature. Energy of activation Frequency factor Reaction rate Rate constant Energy of activation Frequency factor Reaction rate Rate constant ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Oil is hydrogenated using nickel catalyst in a __________ reactor. Slurry Batch Fixed bed Fluidised bed Slurry Batch Fixed bed Fluidised bed ANSWER DOWNLOAD EXAMIANS APP
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