Question

Characteristics of second order reaction

Answer 1

Give the characteristic of a second order reaction having only one reactant.

A) The rate of the reaction is not proportional to the concentration of the reactant.

B) The rate of the reaction is directly proportional to the square of the concentration of the reactant.

C) The rate of the reaction is directly proportional to the square root of the concentration of the reactant.
D) The rate of the reaction is directly proportional to the natural logarithm of the concentration of the reactant.
E) No determinations of proportionality can be determined from the information provided.

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Answer 2

Answer:

1. the value of k (velocity constant) depends on the unit of concentration.
2. half life period is inversely proportional to initial  concentration.
3. second order reaction conforms to the first order when one of the reactants is present in large excess

Explanation:

• Chemical reactions of which the rate of reaction depends on molar concentration of two reactants or the second power of one  reactant involved in the reaction.
• the rate of a second order reaction depends on the second power of the concentration term in the rate equation.
• if we increase the concentration of reactant by 2 times, the rate of reaction will increase by 4 times.
• the rate of all second order reaction depends on either a single reactant or two reactants

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