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Chemical Equilibrium in One Shot (NCERT) Video Lecture | Chemistry Class 11 - NEET

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FAQs on Chemical Equilibrium in One Shot (NCERT) Video Lecture - Chemistry Class 11 - NEET

1. What is chemical equilibrium?
Ans. Chemical equilibrium refers to a state in a chemical reaction where the concentrations of reactants and products remain constant over time. It occurs when the forward and reverse reactions proceed at the same rate, resulting in no further net change in the concentrations of reactants and products.
2. How is chemical equilibrium achieved?
Ans. Chemical equilibrium is achieved when the rates of the forward and reverse reactions become equal. This can happen by adjusting various parameters such as temperature, pressure, and concentration of reactants and products. By altering these factors, the system can reach a state where the concentrations of reactants and products remain constant.
3. What are the factors that can disturb a chemical equilibrium?
Ans. Several factors can disturb chemical equilibrium, including changes in temperature, pressure, and concentration. Increasing the temperature generally favors the endothermic reaction, while decreasing the temperature favors the exothermic reaction. Similarly, changes in pressure can affect equilibrium if the number of moles of gas changes. Altering the concentration of reactants or products can also disrupt the equilibrium.
4. How does Le Chatelier's principle explain the behavior of chemical equilibrium?
Ans. Le Chatelier's principle states that if a system at equilibrium is subjected to a change, it will tend to adjust to counteract the effect of that change. For example, if the concentration of reactants is increased, the system will shift towards the products to restore equilibrium. Similarly, if the pressure is increased, the system will shift towards the side with fewer moles of gas to balance the pressure.
5. Can the position of chemical equilibrium be influenced by catalysts?
Ans. No, catalysts do not affect the position of chemical equilibrium. They only increase the rate at which equilibrium is reached by lowering the activation energy of the reaction. Catalysts provide an alternative pathway for the reaction, but they do not alter the concentrations of reactants and products at equilibrium.
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