What is the significance of negative order reaction?

A negative order means that as the concentration of that substance is increased, the rate of the reaction decreases. An example of this would be a product with a negative order. If the concentration of this product is increased, it participates in a reverse reaction, thereby slowing down the reaction rate.

Why do we use CSTR in series?

The CSTR is always operating a the lowest concentration, the exit concentration. When say two CSTRs are in series, the first operates at a higher concentration, therefore the rate is greater, therefore the conversion is greater. The second reactor in series builds on the conversion in the first reactor.

Can there be negative reaction orders?

Order of reaction can be zero – In zero order reaction the concentration of reactant/s doesn’t affect the rate of a reaction. Order of reaction can be negative integer – Negative integer value of order of reaction indicates that the concentration of the reactants inversely affect the rate of a reaction.

Why do we study order of reaction?

We study the order of the reaction to determine the intermediate, reactants involved and also the catalyst on the reaction. Also we can determine the amount of reactants required for the reaction to proceed..

Can order of a reaction be zero?

Zero-order reactions are typically found when a material that is required for the reaction to proceed, such as a surface or a catalyst, is saturated by the reactants. A reaction is zero-order if concentration data is plotted versus time and the result is a straight line.

Where is CSTR used?

CSTRs are most commonly used in industrial processing, primarily in homogeneous liquid-phase flow reactions where constant agitation is required. However, they are also used in the pharmaceutical industry and for biological processes, such as cell cultures and fermenters.

Are partial orders negative?

Partial orders can be negative. Partial order is the order of reaction with respect to a particular reactant. Overall order of the reaction is the sum of partial orders.

Which of the following statements is not correct about order of a reaction?

The order of a reaction in the sum of the powers of molar concentration of the reactants in rate law expression. Out of the given four statements , option (c) is not correct. Order of reaction is equal to the sum of power of conentration of the reactants in rate law expression.

What are the advantages of using multiple CSTR connecting in series?

CSTRs in series is used fairly commonly to reduce total reactor volume required while retaining advantages of using a CSTR vs. a PFR. As number in series increases, the total volume decreases. This will tend to decrease cost.