For a reversible reaction
Correct answer: C. There is no change in no. of moles during the course of reaction.
- A. It is a gas phase reaction.
- B. It is a liquid phase reaction.
- C. There is no change in no. of moles during the course of reaction.
- D. Value of Kc is 4
Explanation
In this expression, "x" represents the extent of the reaction. Its important to note that a and b in the equation represent the initial concentrations or amounts of the reactants and x represents the extent to which the reaction has progressed. The equation indicates that the stoichiometry of the reaction involves the same number of moles on both sides, as the products and reactants have the same molar coefficients. This implies that there is no net change in the total number of moles during the course of the reaction. Thus, option C) is correct.
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About Chemical Equilibrium
Reversible reactions reach dynamic equilibrium when forward and reverse rates become equal, and Le Chatelier's principle predicts the effect of changing concentration, pressure or temperature. The chapter also covers solubility product, the common ion effect, buffer action and the conditions used in Haber's process, with equilibrium shifts distinguished from changes in the equilibrium constant.
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