Chemical Reaction Engineering Catalyst is a substance, which __________ chemical reaction. Alters the value of equilibrium constant in a reversible Decreases the speed of a Increases the speed of a Can either increase or decrease the speed of a Alters the value of equilibrium constant in a reversible Decreases the speed of a Increases the speed of a Can either increase or decrease the speed of a ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The reactions of high molecularity are rare, because Of low probability of many body collisions Many body collisions are not favoured energetically Of very large activation energy of many bodies Of requirement of very large concentration for such reactions Of low probability of many body collisions Many body collisions are not favoured energetically Of very large activation energy of many bodies Of requirement of very large concentration for such reactions ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Reaction rate of a first order reaction, which is half completed in 23 minutes will be 0.03 hr⁻¹ 0.03 min⁻¹ 0.05 min⁻¹ 0.03 sec⁻¹ 0.03 hr⁻¹ 0.03 min⁻¹ 0.05 min⁻¹ 0.03 sec⁻¹ ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering What is the order of a chemical reaction whose rate is deter-mined by the variation of one concentration term only? Zero First Third Second Zero First Third Second ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The rate of a gas phase reaction is given by K . CA . CB. If the volume of the reaction vessel is reduced to l/4th of its initial volume, then the reaction rate compared to the original rate will be __________ times. 8 4 2 16 8 4 2 16 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The reason why a catalyst increases the rate of reaction is that, it Decreases the energy barrier for reaction None of these Decreases the molecular collision diameter Increases the activation energy Decreases the energy barrier for reaction None of these Decreases the molecular collision diameter Increases the activation energy ANSWER DOWNLOAD EXAMIANS APP
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