Chemical Reaction Engineering If Thiele modulus is __________ , then the pore diffusion resistance in a catalyst may be considered as negligible. ∞ < 0.5 0 > 0.5 ∞ < 0.5 0 > 0.5 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Catalyst carriers 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 Provide large surface area with a small amount of active material Increase the activity of a catalyst ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a first order chemical reaction, the rate constant None ofthese Is not a function of the unit of time Has unit of time⁻¹ Changes on changing the concentration units None ofthese Is not a function of the unit of time Has unit of time⁻¹ Changes on changing the concentration units ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a zero order chemical reaction, the Half life period is directly proportion to the initial concentration of the reac-tants All of these Products concentration increases linerarly with time Plot of products concentration with time is a straight line through the origin Half life period is directly proportion to the initial concentration of the reac-tants All of these Products concentration increases linerarly with time Plot of products concentration with time is a straight line through the origin ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering BET apparatus is used to determine the Specific surface of a porous catalyst Pore size distribution Pore diameter Porosity of the catalyst bed Specific surface of a porous catalyst Pore size distribution Pore diameter Porosity of the catalyst bed ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A catalyst promoter Itself has very high activity Improves the activity of a catalyst All of these Acts as a catalyst support Itself has very high activity Improves the activity of a catalyst All of these Acts as a catalyst support ANSWER DOWNLOAD EXAMIANS APP
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