The rate of the reaction, 2A + B = products is given by the rate expression rate = k[A]1.5 [B]0.5. If A is 2 molar and B is 100 molar then the order of reaction will be

By K Balaji|Updated : November 12th, 2022

If A is 2 molar and B is 100 molar then the order of reaction will be 2.

  • Any chemical reaction's order is determined by adding the concentration terms powers in the rate law.
  • It was calculated experimentally and is independent of the reactants concentration.
  • The power raised to the concentration word in the rate law expression determines the sequence of the reaction.

We know that

Rate = k[A]1.5 [B]0.5

According to the expression

Order = 1.5 + 0.5 = 2

No of the concentrations, the reaction will continue to be second-order.

Reaction Order

The power dependence of rate on the concentration of all reactants can be used to define the sequence of reaction. For instance, the concentration of one species in a first-order reaction determines the reaction's pace entirely. The following is a list of some properties of a chemical reaction's reaction order.

  • The number of species whose concentration directly influences the rate of reaction is represented by the order of reactions.
  • It can be found by summing all of the exponents in the rate expression for the concentration terms.
  • The stoichiometric coefficients corresponding to each species in the balanced reaction do not affect the order of the reaction.
  • Chemical reactions are always defined by the concentrations of the reactants, never by the concentrations of the products.
  • The order of reaction value can be expressed as an integer or a fraction. Even zero can be a possible value for it.

Summary:-

The rate of the reaction, 2A + B = products is given by the rate expression rate = k[A]1.5 [B]0.5. If A is 2 molar and B is 100 molar then the order of reaction will be

The rate of the reaction, 2A + B = products is given by the rate expression rate = k[A]1.5 [B]0.5. If A is 2 molar and B is 100 molar then the order of reaction will be 2.

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