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 τ/0.693 0.693τ 2τ 0.5τ τ/0.693 0.693τ 2τ 0.5τ 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 hT/tan T Tan hT/T None of these Tan T/T Tan hT/tan T Tan hT/T None of these Tan T/T ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In an exothermic chemical reaction, the reactants compared to the products have Same energy Higher temperature More energy Less energy Same energy Higher temperature More energy Less energy ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering BET apparatus Operates at very high pressure Is made entirely of stainless steel Measures the catalyst surface area directly None of these Operates at very high pressure Is made entirely of stainless steel Measures the catalyst surface area directly None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering With increase in temperature, the equilibrium __________ rises in case of endothermic reaction. Conversion Both A & B Neither A nor B Constant Conversion Both A & B Neither A nor B Constant ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a packed bed reactor; the presence of a long tail in the residence time distribution curve is an indication of Bypass Ideal plug flow Chanelling Dead zone Bypass Ideal plug flow Chanelling Dead zone ANSWER DOWNLOAD EXAMIANS APP
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