Chemical Reaction Engineering In an ideal tubular-flow reactor 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 All of these There is a uniform velocity across the radius There is no mixing in longitudinal direction 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) None of these Tan hT/T Tan hT/tan T Tan T/T None of these Tan hT/T Tan hT/tan T Tan T/T ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is not a unit of reaction rate? Moles for med/(surface of catalyst) (time) None of these Moles formed/volume of reactor) (time) Mole formed/volume of catalyst) (time) Moles for med/(surface of catalyst) (time) None of these Moles formed/volume of reactor) (time) Mole formed/volume of catalyst) (time) ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For an isothermal second order aqueous phase reaction, A → B, the ratio of the time required for 90% conversion to the time required for 45% conversion is 11 4 22 2 11 4 22 2 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering __________ gas is normally employed in B.E.T.method of finding out the surface area of catalyst. CO₂ N₂ He H₂ CO₂ N₂ He H₂ ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The optimum performance for reactors operating in parallel is obtained when the feed stream is distributed in such a way, that the Space time for parallel lines is different None of these Larger reactors have more space time compared to smaller ones Space time for each parallel line is same Space time for parallel lines is different None of these Larger reactors have more space time compared to smaller ones Space time for each parallel line is same ANSWER DOWNLOAD EXAMIANS APP
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