Chemical Reaction Engineering Promoter. Atlers the position of equilibrium in a reversible reaction Increases the number of active centres by increasing the unevenness of catalyst surface and by creating discontinuities in the crystals Initiates a chemical reaction and is a catalyst by itself All of these Atlers the position of equilibrium in a reversible reaction Increases the number of active centres by increasing the unevenness of catalyst surface and by creating discontinuities in the crystals Initiates a chemical reaction and is a catalyst by itself All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A chemical reaction is of zero order, when the reaction rate is (where, CA = concentration of reactant) ∝ 1/CA None of these Independent of temperature ∝ CA ∝ 1/CA None of these Independent of temperature ∝ CA ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A liquid decomposes by irreversible first order kinetics and the half life period of this reaction is 8 minutes. The time required for 75% conversion of the liquid will be __________ minutes. 8 12 16 4 8 12 16 4 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Velocity of a chemical reaction Increases with increase of pressure of reactants for all reactions None of these Decreases with increase of reactant concentration Decreases with increase in temperature Increases with increase of pressure of reactants for all reactions None of these Decreases with increase of reactant concentration Decreases with increase in temperature ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Enzymes (a protein) are catalysts found in organisms. Its efficiency of catalysing a reaction is due to its capacity to lower the activation energy of the reaction. The enzyme ptyalin used for food digestion is present in Gland Saliva Intestine Blood Gland Saliva Intestine Blood ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Reactions with high activation energy are Temperature insensitive Always irreversible Always reversible Very temperature sensitive Temperature insensitive Always irreversible Always reversible Very temperature sensitive ANSWER DOWNLOAD EXAMIANS APP