Chemical Reaction Engineering In a semi-batch reactor Both the reactants flow counter-currently Maximum conversion can be controlled Velocity of reaction can be controlled Residence time is constant Both the reactants flow counter-currently Maximum conversion can be controlled Velocity of reaction can be controlled Residence time is constant ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A batch reactor is Most suitable for very large production rate Suitable for liquid phase reactions involving small production rate Suitable for gas-phase reactions on commercial scale Least expensive to operate for a given rate Most suitable for very large production rate Suitable for liquid phase reactions involving small production rate Suitable for gas-phase reactions on commercial scale Least expensive to operate for a given rate ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering What is the dispersion number for a plug flow reactor? 1 ? -1 1 ? -1 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following resistances is not involved in a gas phase catalytic (gas- solid) reaction? Surface phenomenon resistance Gas film and pore surface diffusion resistances for products Ash resistance Gas film and pore surface diffusion resistances for reactants Surface phenomenon resistance Gas film and pore surface diffusion resistances for products Ash resistance Gas film and pore surface diffusion resistances for reactants ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Chemical kinetics can predict the __________ of a chemical reaction. Rate Both A & B Feasibility Neither A nor B Rate Both A & B Feasibility Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A pulse tracer is introduced in an ideal CSTR (with a mean residence time ι) at time, t = 0. The time taken for the exit concentration of the tracer to reach half of its initial value will be 2τ τ/0.693 0.5τ 0.693τ 2τ τ/0.693 0.5τ 0.693τ ANSWER DOWNLOAD EXAMIANS APP
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