Chemical Reaction Engineering A catalyst loses its activity due to Covering of the catalytic active sites by a foregin substance Agglomeration of metal particles caused by thermal sintering of the solid surface Loss in surface area of the active component All of these Covering of the catalytic active sites by a foregin substance Agglomeration of metal particles caused by thermal sintering of the solid surface Loss in surface area of the active component All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A batch reactor is characterised by Variation in extent of reaction and properties of the reaction mixture with time Very low conversion Variation in reactor volume Constant residence time Variation in extent of reaction and properties of the reaction mixture with time Very low conversion Variation in reactor volume Constant residence time ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering From collison theory, the reaction rate constant is proportional to √T Exp(- E/RT) Exp(- E/2RT) Tm.exp(- E/RT) √T Exp(- E/RT) Exp(- E/2RT) Tm.exp(- E/RT) ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering 'Unreacted core model' represents the reaction involving None of these Manufacture of carbon disulphide from elements Combustion of coal particles Roasting of sulphide ores None of these Manufacture of carbon disulphide from elements Combustion of coal particles Roasting of sulphide ores ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In an ideal tubular-flow reactor All of these There is a uniform velocity across the radius There is no mixing in longitudinal direction Mixing takes place in radial direction All of these There is a uniform velocity across the radius There is no mixing in longitudinal direction Mixing takes place in radial direction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Transition state theory gives the rate constant as K α √T . e-E/RT K α eE/RT K α T . e-E/RT K α e-E/RT K α √T . e-E/RT K α eE/RT K α T . e-E/RT K α e-E/RT ANSWER DOWNLOAD EXAMIANS APP
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