Chemical Reaction Engineering When a catalyst increases the rate of forward reaction, the value of rate constant Decreases Remain same Increases Becomes infinite Decreases Remain same Increases Becomes infinite ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In case of the irreversible unimolecular type, first order reaction, the fractional conversion at any time for constant volume system as compared to variable volume system is Same More Less Either A or B, depends on other factors Same More Less Either A or B, depends on other factors ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering An isothermal aqueous phase reversible reaction, P ⇋ R, is to be carried out in a mixed flow reactor. The reaction rate in k.mole/m³ .h is given by, r = 0.5CP - 0.125CR. A stream containing only P enters the 1.60 1.33 0.80 2.67 1.60 1.33 0.80 2.67 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 Pick out the wrong statement pertaining to space velocity of flow reactors. The space velocity of 3 hr⁻¹ means that three reactor volumes of feed at specified conditions are being fed into the reactor every hour The unit of space velocity is (time)⁻¹ None of these The space velocity of 3 hr⁻¹ means that one third reactor volume of feed at specified conditions are being fed into the reactor The space velocity of 3 hr⁻¹ means that three reactor volumes of feed at specified conditions are being fed into the reactor every hour The unit of space velocity is (time)⁻¹ None of these The space velocity of 3 hr⁻¹ means that one third reactor volume of feed at specified conditions are being fed into the reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is the optimum operating condition for an exothermic reversible reaction taking place in a plug-flow reactor? Very high temperature should be used throughout the reaction Temperature should be high in the beginning and decreased towards the end of the reaction Very low temperature should be used throughout the reaction None of these Very high temperature should be used throughout the reaction Temperature should be high in the beginning and decreased towards the end of the reaction Very low temperature should be used throughout the reaction None of these ANSWER DOWNLOAD EXAMIANS APP
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