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 In the hydrodealkylation of toluene to benzene, the following reactions occur:C₇H₈ + H₂ → C₆H₆ + CH₄2C₆H₆ ⇋ C₁₂H₁₀ + H₂Toluene and hydrogen are fed to a reactor in a molar ratio 1:5.80% of the toluene gets converted and the selectivity of benzene(defined as moles of benzene formed/moles of toluene converted) is 90%. The fractional conversion of hydrogen is 0.144 0.136 0.152 0.16 0.144 0.136 0.152 0.16 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering An irreversible first order reaction is being carried out in a CSTR and PFR of same volume. The liquid flow rates are same. The relative conversion will Be same in both cases Be more in CSTR than in PFR Be more in PFR than in CSTR Depend on the temperature Be same in both cases Be more in CSTR than in PFR Be more in PFR than in CSTR Depend on the temperature ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If CA is the quantity of reactants initially present, the quantity left after 'n' half periods will be equal to (CA)1/2n (1/2)n.CA (CA)1/n (CA)n (CA)1/2n (1/2)n.CA (CA)1/n (CA)n ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The energy balance equation over a tubular reactor under transient conditions is An algebric differential equation An ordinary non-linear differential equation A linear partial differential equation A non-linear partial differential equation An algebric differential equation An ordinary non-linear differential equation A linear partial differential equation A non-linear partial differential equation ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Rate of an autocatalytic chemical reaction is a function of Composition only All of these Temperature only Pressure only Composition only All of these Temperature only Pressure only ANSWER DOWNLOAD EXAMIANS APP
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