Chemical Reaction Engineering A chemical reaction occurs when the energy of the reacting molecules is __________ the activation energy of the reaction. Equal to More than Equal to or more than Less than Equal to More than Equal to or more than Less than ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A catalyst is said to be a negative catalyst, ifit Does not initiate the reaction All of these Reduces the value of equilibrium constant Retards the rate of reaction Does not initiate the reaction All of these Reduces the value of equilibrium constant Retards the rate of reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The dimensions of rate constant for reaction 3A → B are (l/gm mole)/min. Therefore the reaction order is 2 1 3 2 1 3 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Pick the WRONG design guideline for a reactor in which the reactions, A → R (desired) and A → S (undesired) are to take place. The ratio of the reaction rates is rR/rS = (k₁/k₂).Csub>Aa-b Avoid recycle, when a > b Use batch reactor or plug flow reactor, when a > b Use CSTR with a high conversion, when a > b Use high pressure and eliminate inerts, when a > b Avoid recycle, when a > b Use batch reactor or plug flow reactor, when a > b Use CSTR with a high conversion, when a > b Use high pressure and eliminate inerts, when a > b ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The gas phase reaction 2A ⇋ B is carried out in an isothermal plug flow reactor. The feed consists of 80 mole % A and 20 mole % inerts. If the conversion of A at the reactor exit is 50%, then CA/CA0 at the outlet of the reactor is 43864 43959 43833 43898 43864 43959 43833 43898 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The units of frequency factor in Arhenious equation Are the same as those of the rate constant Depend on temperature, pressure etc. of the reaction Depend on the order of the reaction Are cycles per unit time Are the same as those of the rate constant Depend on temperature, pressure etc. of the reaction Depend on the order of the reaction Are cycles per unit time ANSWER DOWNLOAD EXAMIANS APP
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