Chemical Reaction Engineering A chemical reaction, A → 3B, is conducted in a constant pressure vessel. Starting with pure A, the volume of the reaction mixture increases 3 times in 6 minutes. The fractional conversion is Data insufficient, can't be predicted 0.5 1 0.33 Data insufficient, can't be predicted 0.5 1 0.33 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Limiting reactant in a chemical reaction decides the Conversion Equilibrium constant Reaction speed Rate constant Conversion Equilibrium constant Reaction speed Rate constant ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A catalyst is said to be a negative catalyst, ifit Reduces the value of equilibrium constant All of these Retards the rate of reaction Does not initiate the reaction Reduces the value of equilibrium constant All of these Retards the rate of reaction Does not initiate the reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Half life period of a chemical reaction is None of these Half of the space time of a reaction Half of the residence time of a reaction The time required to reduce the concentration of the reacting substance to half its initial value None of these Half of the space time of a reaction Half of the residence time of a reaction The time required to reduce the concentration of the reacting substance to half its initial value ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The rate expression for a heterogenous catalytic reaction is given by, - rA = K.KA PA(1 + KA.PA + Kr.PR), where K is surface reaction rate constant and KA and KR are absorption equilibrium constants of A and R respectively. If KR PR >> (1 + KA PA), the apparent activation energy EA is equal to (given E is the activation energy for the reaction and ΔHR and ΔHA are the activation energies of adsorption of R and A) E + ΔHA - ΔHR E + ΔHA E ΔHA + ΔHR E + ΔHA - ΔHR E + ΔHA E ΔHA + ΔHR ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A catalyst in a chemical reaction __________ free energy change in the reaction. Increases Either A or B; depends on the type of catalyst Decreases Neither A nor B Increases Either A or B; depends on the type of catalyst Decreases Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
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