For a certain chemical reaction, the slope of the plot was determined and plotted against the concentration and a straight line was obtained. It indicates that the reaction is of:
Correct answer: A. First order
- A. First order
- B. Second order
- C. Third order
- D. Zero order
Explanation
A first-order reaction is a type of chemical reaction in which the rate of the reaction is directly proportional to the concentration of one of the reactants. A second-order reaction is a chemical reaction in which the rate of reaction is proportional to the square of the concentration of one or two of the reactants. As a straight line is obtained it means rate increases with increase in concentration and the concentration is square so it is second order reaction A third-order reaction is a type of chemical reaction in which the rate of the reaction is proportional to the product of the concentrations of three reactant species, each raised to the power of one.A zero-order reaction is a type of chemical reaction in which the rate of the reaction is independent of the concentration of the reactants
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About Reaction Kinetics
Reaction kinetics relates reaction rate to concentration, temperature, surface area and catalysts. Questions cover rate laws, reaction order, rate constants, activation energy and the activated complex, including how a catalyst lowers the activation energy without changing the overall energy change or equilibrium position.
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