Chemical Reaction Engineering The most suitable reactor for carrying out an auto-thermal reaction is a CSTR Batch reactor Plug-flow reactor Semi-batch reactor CSTR Batch reactor Plug-flow reactor Semi-batch reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A first order gaseous phase reaction is catalysed by a non-porous solid. The kinetic rate constant and the external mass transfer co-efficients are k and kg respectively. The effective rate constant (keff) is given by keff = (k+ kg)/2 1/keff = 1/k + 1/kg keff = (kkg)1/2 keff = k + kg keff = (k+ kg)/2 1/keff = 1/k + 1/kg keff = (kkg)1/2 keff = k + kg ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If the time required to complete a definite fraction of reaction varies inversely as the concentration of the reactants, then the order of reaction is 2 1 3 2 1 3 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A catalyst in a chemical reaction __________ free energy change in the reaction. Either A or B; depends on the type of catalyst Increases Decreases Neither A nor B Either A or B; depends on the type of catalyst Increases Decreases Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A catalyst loses its activity due to All of these Agglomeration of metal particles caused by thermal sintering of the solid surface Loss in surface area of the active component Covering of the catalytic active sites by a foregin substance All of these Agglomeration of metal particles caused by thermal sintering of the solid surface Loss in surface area of the active component Covering of the catalytic active sites by a foregin substance ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Time required for 50% decomposition of a liquid in an isothermal batch reactor following first order kinetics is 2 minutes. The time required for 75% decomposition will be about __________ minutes. 3 6 8 4 3 6 8 4 ANSWER DOWNLOAD EXAMIANS APP
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