Chemical Reaction Engineering For nearly isothermal operation involving large reaction time in a liquid-phase reaction, the most suitable reactor is a __________ reactor. Batch Tubular flow Stirred tank Fixed bed Batch Tubular flow Stirred tank Fixed bed ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Rate constant for a first order reaction does not depend upon reaction time, extent of reaction and the initial concentration of reactants ; but it is a function of reaction temperature. In a chemical reaction, the time required to reduce the concentration of reactant from 100 gm moles/litre to 50 gm moles/litre is same as that required to reduce it from 2 gm moles/litre to 1 gm mole/litre in the same volume. Then the order of this reaction is 2 1 0 3 2 1 0 3 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Reactions with high activation energy are Always reversible Always irreversible Temperature insensitive Very temperature sensitive Always reversible Always irreversible Temperature insensitive Very temperature sensitive ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Effectiveness factor (E) of a catalyst pellet is defined as, E = (actual rate within pore of catalyst/rate if notsnowed by pore diffusion) Effectiveness factor for a first order reaction is given by (where, T = Thiele modulus) Tan T/T None of these Tan hT/tan T Tan hT/T Tan T/T None of these Tan hT/tan T Tan hT/T ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering __________ is the controlling step in a highly temperature sensitive fluid-solid non-catalytic reaction. Gas film diffusion None of these Chemical reaction Ash diffusion Gas film diffusion None of these Chemical reaction Ash diffusion ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Participation of __________ is involved in the occurrence of a chemical reaction. Protons Electrons Neutrons None of these Protons Electrons Neutrons None of these ANSWER DOWNLOAD EXAMIANS APP
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