Chemical Reaction Engineering In an ideal tubular-flow reactor Mixing takes place in radial direction There is a uniform velocity across the radius There is no mixing in longitudinal direction All of these Mixing takes place in radial direction There is a uniform velocity across the radius There is no mixing in longitudinal direction All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Rate of a chemical reaction is not affected by the Reactant's concentration Temperature Number of molecules of reactants taking part in the reaction Catalyst Reactant's concentration Temperature Number of molecules of reactants taking part in the reaction Catalyst ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Catalyst carriers Increase the activity of a catalyst Have very high selectivity Inhibit catalyst poisoning Provide large surface area with a small amount of active material Increase the activity of a catalyst Have very high selectivity Inhibit catalyst poisoning Provide large surface area with a small amount of active material ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A space velocity of 5 hr⁻¹ means that Cent per cent conversion can be achieved in at least 5 hours Five reactor volumes of feed (at specified conditions) are being fed into the reactor per hour A fixed conversion of a given batch of feed takes 5 hours After every 5 hours, reactor is being filled with the feed Cent per cent conversion can be achieved in at least 5 hours Five reactor volumes of feed (at specified conditions) are being fed into the reactor per hour A fixed conversion of a given batch of feed takes 5 hours After every 5 hours, reactor is being filled with the feed ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Overall rate of reaction in a heterogenous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually __________ the concentration of catalyst, if it does not entail a chain mechanism. Inversely proportional to Independent of Proportional to the square of Proportional to Inversely proportional to Independent of Proportional to the square of Proportional to ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The effectiveness factor for large value of Thiele modulus (L√(K/D1)) of a solid catalysed first order reaction is equal to (where, L = length of the reactor, cm, D1 = diffusion co-efficient, cm²/second) 1 ∞ L√(K/D1) 1/(L√(K/D1)) 1 ∞ L√(K/D1) 1/(L√(K/D1)) ANSWER DOWNLOAD EXAMIANS APP
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