Chemical Reaction Engineering Rate determining step in a reaction consisting of a number of steps in series is the __________ step. Slowest Data insufficient; can't be predicted Intermediate Fastest Slowest Data insufficient; can't be predicted Intermediate Fastest 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 reduced or the catalyst diffusivity is increased Catalyst size is increased or the catalyst diffusivity is reduced Catalyst size is increased or the catalyst diffusivity is increased Catalyst size is reduced or the catalyst diffusivity is reduced Catalyst size is reduced or the catalyst diffusivity is increased Catalyst size is increased or the catalyst diffusivity is reduced Catalyst size is increased or the catalyst diffusivity is increased Catalyst size is reduced or the catalyst diffusivity is reduced ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering When a catalyst increases the rate of forward reaction, the value of rate constant Increases Becomes infinite Decreases Remain same Increases Becomes infinite Decreases Remain same ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Overall rate of reaction in a heterogenous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually __________ the concentration of catalyst, if it does not entail a chain mechanism. Independent of Proportional to the square of Inversely proportional to Proportional to Independent of Proportional to the square of Inversely proportional to Proportional to ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering With the same reaction time, initial concentration and feed rate, the reaction 2A → B is carried out separately in CSTR and P.F. reactor of equal volumes. The conversion will be Same in both the reactors Higher in CSTR Higher in P.F. reactor Data insufficient; can't be predicted Same in both the reactors Higher in CSTR Higher in P.F. reactor Data insufficient; can't be predicted ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In which of the following gaseous phase reactions, the equilibrium of the reaction remains unaffacted by pressure changes ? N? + O? ? 2NO 2SO? + O? ? 2SO? 2NO? ? N?O? 2O? ? 3O? N? + O? ? 2NO 2SO? + O? ? 2SO? 2NO? ? N?O? 2O? ? 3O? ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS