Chemical Reaction Engineering A catalyst in a chemical reaction __________ free energy change in the reaction. Decreases Increases Either A or B; depends on the type of catalyst Neither A nor B Decreases Increases Either A or B; depends on the type of catalyst Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering When a catalyst increases the rate of chemical reaction, the rate constant Increases Decreases Becomes infinite Remains constant Increases Decreases Becomes infinite Remains constant ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Catalyst carriers Have very high selectivity Inhibit catalyst poisoning Increase the activity of a catalyst Provide large surface area with a small amount of active material Have very high selectivity Inhibit catalyst poisoning Increase the activity of a catalyst Provide large surface area with a small amount of active material ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Transition state theory gives the rate constant as K α eE/RT K α √T . e-E/RT K α e-E/RT K α T . e-E/RT K α eE/RT K α √T . e-E/RT K α e-E/RT K α T . e-E/RT ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Overall rate of reaction in a heterogenous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually __________ the concentration of catalyst, if it does not entail a chain mechanism. Proportional to Inversely proportional to Proportional to the square of Independent of Proportional to Inversely proportional to Proportional to the square of Independent of ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Cold shot cooling is only practical when the feed temperature is __________ than the reaction temperature. Much higher Higher Much lower Lower Much higher Higher Much lower Lower ANSWER DOWNLOAD EXAMIANS APP
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