Question:
Point out the incorrect statement
Point out the incorrect statement
Updated On: Jul 6, 2022
- Rate law is an experimental fact whereas law of mass action is a theoretical proposal
- Rate law is always different from the expression of law of mass action
- Rate law is more informative than law of mass action for the development of mechanism
- Order of a reaction is equal to the sum of powers of concentration terms in the rate law
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The Correct Option is B
Solution and Explanation
Rate law expression may come out to be similar to that predicted by law of mass action
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Notes on Rate of a Chemical Reaction
Concepts Used:
Rate of a Chemical Reaction
The rate of a chemical reaction is defined as the change in concentration of any one of the reactants or products per unit time.
Consider the reaction A → B,
Rate of the reaction is given by,
Rate = −d[A]/ dt=+d[B]/ dt
Where, [A] → concentration of reactant A
[B] → concentration of product B
(-) A negative sign indicates a decrease in the concentration of A with time.
(+) A positive sign indicates an increase in the concentration of B with time.
Factors Determining the Rate of a Reaction:
There are certain factors that determine the rate of a reaction:
- Temperature
- Catalyst
- Reactant Concentration
- Chemical nature of Reactant
- Reactant Subdivision rate