Chemical Reaction Engineering The dispersion number of perfect mixed flow is > 150 ∞ < 2100 > 150 ∞ < 2100 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
Chemical Reaction Engineering The ratio of volume of mixed reactor to the volume of P.F.R. (for identical flow rate, feed composition and conversion) for zero order reaction is 1 ∞ > 1 1 ∞ > 1 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering What is the order of a chemical reaction in which doubling the initial concentration of the reactants doubles the half life time of the reaction? 3 2 Zero 1 3 2 Zero 1 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In case of a/an __________ chemical reaction, conversion increases with the rise in temperature. Irreversible exothermic Reversible endothermic Irreversible endothermic Reversible exothermic Irreversible exothermic Reversible endothermic Irreversible endothermic Reversible exothermic 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 3 1 0 2 3 1 0 2 ANSWER DOWNLOAD EXAMIANS APP
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