Chemical Reaction Engineering When the density of the reaction mixture is constant in a chemical reaction, the ratio of the mean residence time to space time is < 1 1 > 1 < 1 1 > 1 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering At a given value of E/R (ratio of activation energy and gas constant), the ratio of the rate constants at 500°K and 400°K is 2, if Arrhenious law is used. What will be this ratio, if transition state theory is used with the same value of E/R? 1.6 2 2.24 2.5 1.6 2 2.24 2.5 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A plug-flow reactor is characterised by Presence of axial mixing Presence of lateral mixing Constant composition and temperature of reaction mixture High capacity Presence of axial mixing Presence of lateral mixing Constant composition and temperature of reaction mixture High capacity ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A catalyst loses its activity due to Covering of the catalytic active sites by a foregin substance All of these Loss in surface area of the active component Agglomeration of metal particles caused by thermal sintering of the solid surface Covering of the catalytic active sites by a foregin substance All of these Loss in surface area of the active component Agglomeration of metal particles caused by thermal sintering of the solid surface ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a homogeneous reaction of nth order, the dimension of the rate constant is given by L/(time)n (concentration)1 - n/(time) None of these (concentration)n - 1/(time) L/(time)n (concentration)1 - n/(time) None of these (concentration)n - 1/(time) ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering When the reaction occurs in the diffusion controlled region, the apparent activation energy as measured is only __________ the true value. Half None of these Equal Twice Half None of these Equal Twice ANSWER DOWNLOAD EXAMIANS APP
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