Chemical Reaction Engineering The exit age distribution curve E(t) for an ideal CSTR with the average residence time, τ, is given by 1 - (e-t/τ/T) E-t/τ/T 1 - e-t/τ E-t/τ 1 - (e-t/τ/T) E-t/τ/T 1 - e-t/τ E-t/τ ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A catalyst loses its activity due to Covering of the catalytic active sites by a foregin substance Loss in surface area of the active component All of these Agglomeration of metal particles caused by thermal sintering of the solid surface Covering of the catalytic active sites by a foregin substance Loss in surface area of the active component All of these Agglomeration of metal particles caused by thermal sintering of the solid surface ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Half life period of a first order irreversible reaction A → B is Ln 0.5/k Ln 2/k K/2 Ln k/2 Ln 0.5/k Ln 2/k K/2 Ln k/2 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Space velocity Is a measure of the ease of the reaction Is the maximum feed rate pre unit volume of reactor for a given conversion Describes the extensive operating characteristics of a tubular flow reactor All of these Is a measure of the ease of the reaction Is the maximum feed rate pre unit volume of reactor for a given conversion Describes the extensive operating characteristics of a tubular flow reactor All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Sometimes, batch process is preferred over continuous process, when the product Both A & B Neither A nor B Quality & yield can not be achieved in continuous processes, because of long residence time Sales demand is fluctuating Both A & B Neither A nor B Quality & yield can not be achieved in continuous processes, because of long residence time Sales demand is fluctuating ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In a reaction, the threshold energy is equal to (where, A = activation energy N = normal energy of reactants) A A+N N A-N A A+N N A-N ANSWER DOWNLOAD EXAMIANS APP
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