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The number of correct statement/s involving equilibria in physical processes from the following is ________ (A) Equilibrium is possible only in a closed system at a given temperature. (B) Both the opposing processes occur at the same rate. (C) When equilibrium is attained at a given temperature, the value of all its parameters became equal. (D) For dissolution of solids in liquids, the solubility is constant at a given temperature.
- 3
- 1
- 2
- 4
Correct answer: 3
Solution
Options (B), (D), and (A) are correct because at equilibrium, opposing processes occur at the same rate, solubility remains constant at a given temperature, and while equilibrium is typically discussed in closed systems, it can also apply to open systems under certain conditions. Option (C) is incorrect as parameters like concentration can remain constant without being equal.
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