ChE 324: Kinetics Chapter 6 Quiz

Multiple reactions refer to situations where more than one chemical reaction occurs simultaneously.

Reactions that happen at the same time and compete for the same reactants.

Reactions where the product of one reaction becomes the reactant for the next.

Reactions that occur independently of each other without affecting one another.

Complex reactions involve multiple reactions happening simultaneously, with some reactions influencing the rate of others.

The concentration of reactants is crucial in determining the rates of each reaction and influencing which product is favored.

Reactor selection depends on the desired concentrations of reactants and products, as well as the specific characteristics of the involved reactions.

The desired product influences the reactor selection, as different reactors can enhance the formation of specific products.

The ratio of the moles of product formed to the moles of reactant consumed.

A type of reactor where the reactants and products are continuously mixed, resulting in a uniform concentration throughout the reactor.

A type of reactor where the reactants flow through a long tube, allowing for gradual changes in concentration along the length.

The time it takes for a volume of fluid to pass through a reactor.

The rate at which a reactant is consumed in a chemical reaction.

The fraction of the initial reactant that has been converted to product.

The equation describing the relationship between the rate of reaction, the space time, conversion, and initial concentration.

A measure of the efficiency of the reactor in terms of the amount of product formed per unit of reactant consumed.

The overall yield represents the fraction of the initial amount of reactant A that is converted into the desired product B.

The yield of B is the fraction of the initial amount of A that is converted into B, calculated by dividing the moles of B produced by the moles of A fed.

The mass balance equation relates the change in the moles of B in the reactor to the rate of formation of B.

The integral of the mass balance equation gives us the concentration of B at any given time in the reactor.

The mole balance equation relates the change in the moles of A in the reactor to the rate of consumption of A.

The integral of the mole balance equation gives us the time it takes to achieve a certain conversion of A.

A CSTR (Continuous Stirred Tank Reactor) is a reactor where the contents are perfectly mixed, ensuring a uniform concentration throughout.

A PFR (Plug Flow Reactor) is a reactor where the flow is unidirectional and there is no mixing, so the concentration changes along the reactor length.

The time it takes for a reactant to pass through a reactor.

The rate of formation of a product or the rate of disappearance of a reactant.

The ratio of the concentration of a product to the initial concentration of the limiting reactant.

The desired concentration of the product at the outlet of the reactor.

A type of reactor where reactants are continuously fed and products are continuously withdrawn.

The time required for the concentration of a reactant to decrease to a specific value.

A type of reactor where reactants flow through a long tube, resulting in gradual concentration changes.

A series reaction is a type of chemical reaction where the product of one reaction becomes the reactant of the next reaction.

The concentration of the intermediate product (B) in a series reaction can reach a maximum value due to the dynamic balance between its formation and consumption rates.

The optimal space time (τopt) is the time required to maximize the concentration of the desired product (B) in a series reaction.

Space time (τ) is the time it takes for a volume of fluid to pass through a reactor.

The optimal volume (Vopt) is the reactor volume that maximizes the production of the desired product (B) by using the optimal space time (τopt).

The conversion (XA) is the fraction of the initial reactant (A) that has been converted to products.

The overall yield is a measure of the efficiency of the reactor in terms of the amount of product formed per unit of reactant consumed.

Rate of reaction (-rA) is the expression describing the rate at which a reactant is consumed in a chemical reaction.

A continuous stirred tank reactor (CSTR) is a type of reactor where the reactants and products are continuously mixed, resulting in a uniform concentration throughout the reactor.

A plug flow reactor (PFR) is a type of reactor where the reactants flow through a long tube, allowing for gradual changes in concentration along the length.