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FAQs on Chemical kinetic practice set-2(JAM) - Additional Documents & Tests for IIT JAM

1. What is chemical kinetics?
Ans. Chemical kinetics is the study of the rates at which chemical reactions occur and the factors that influence these rates. It involves analyzing the steps involved in a reaction and understanding how the concentrations of reactants and temperature affect the reaction rate.
2. What are the different factors that can affect the rate of a chemical reaction?
Ans. The rate of a chemical reaction can be influenced by several factors, including the concentration of reactants, temperature, presence of catalysts, and surface area of reactants. Increasing the concentration of reactants, raising the temperature, using a catalyst, or increasing the surface area of reactants can all result in an increased reaction rate.
3. How can reaction rates be determined experimentally?
Ans. Reaction rates can be determined experimentally by measuring the change in concentration of reactants or products over time. This can be done by using techniques such as spectroscopy, chromatography, or titration. By monitoring the change in concentration at different time intervals, the rate of the reaction can be calculated.
4. What is the difference between rate constant and reaction rate?
Ans. The rate constant is a proportionality constant that relates the rate of a reaction to the concentrations of the reactants. It is specific to a particular reaction and temperature. On the other hand, the reaction rate is the speed at which the reactants are being consumed or the products are being formed. It is dependent on the rate constant as well as the concentrations of the reactants.
5. How does temperature affect the rate of a chemical reaction?
Ans. Increasing the temperature generally increases the rate of a chemical reaction. This is due to the fact that higher temperatures provide more kinetic energy to the reactant molecules, leading to increased frequency of successful collisions and therefore a higher reaction rate. The relationship between temperature and reaction rate can be quantitatively described by the Arrhenius equation.
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