The speed of molecules ___.

in cold water is more than that of room temperature water

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in hot water is more than that of room temperature water

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in hot water is equal to that of room temperature water

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in hot water is equal to that of cold water

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Solution

The correct option is B in hot water is more than that of room temperature water
More the temperature, more will be the kinetic energy of the molecules.
The speed of molecules in hot water will be more as they possess greater kinetic energy. The speed of molecules in cold water is almost nil compared to water at room temperature.

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