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Question
The rate at which a solid dissolves in water is increased by which of the following?
I. Increasing the surface area of the solid
II. Raising the temperature the water
III. Stirring the mixture
The rate at which a solid dissolves in water is increased by which of the following?
I. Increasing the surface area of the solid
II. Raising the temperature the water
III. Stirring the mixture
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Solution
The correct option is E I, II and III only
The rate of solubility of solid in water can be increased by increasing the temperature of water and with the help of stirring because both increase the kinetic energy of the solid particles in water, Increasing the surface area increases the rate of solubility of a solid because a larger number of molecules of the greater suface area have contact with the solvent.
Hence, option (E) is correct.
The rate of solubility of solid in water can be increased by increasing the temperature of water and with the help of stirring because both increase the kinetic energy of the solid particles in water,
Increasing the surface area increases the rate of solubility of a solid because a larger number of molecules of the greater suface area have contact with the solvent.
Hence, option (E) is correct.
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