Chemical Reaction Engineering A catalyst inhibitor All of these May be useful for suppressing undesirable side reactions Is added in small quantity during the catalyst manufacture itself Lessens its selectivity All of these May be useful for suppressing undesirable side reactions Is added in small quantity during the catalyst manufacture itself Lessens its selectivity ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Study of chemical kinetics is the easiest in the case of __________ reactions. Side Surface Irreversible Reversible Side Surface Irreversible Reversible ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Catalyst carriers Provide large surface area with a small amount of active material Increase the activity of a catalyst Inhibit catalyst poisoning Have very high selectivity Provide large surface area with a small amount of active material Increase the activity of a catalyst Inhibit catalyst poisoning Have very high selectivity ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The reaction rate almost gets doubled for 10°C rise in temperature. This is due to the fact that the Collision frequency increases Value of threshold energy decreases Fraction of molecules having threshold energy increases Increased temperature reduces the activation energy Collision frequency increases Value of threshold energy decreases Fraction of molecules having threshold energy increases Increased temperature reduces the activation energy ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a solid catalysed chemical reaction, the effectiveness of solid catalyst depends upon the __________ adsorption. Both A and B Physical Neither A nor B Chemical Both A and B Physical Neither A nor B Chemical ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Half life period of a chemical reaction is The time required to reduce the concentration of the reacting substance to half its initial value Half of the residence time of a reaction None of these Half of the space time of a reaction The time required to reduce the concentration of the reacting substance to half its initial value Half of the residence time of a reaction None of these Half of the space time of a reaction ANSWER DOWNLOAD EXAMIANS APP
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