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  4. In most liquids, with rise in temperature, surface tension of a liquid

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Q. In most liquids, with rise in temperature, surface tension of a liquid

MHT CETMHT CET 2021

Solution:

In most of liquids, the cause of dynamic viscosity is the intermolecular force of attraction or cohesive forces and on increasing the temperature, molecules of liquids try to move away from each other which in turn reduces the cohesive force and hence dynamic viscosity decreases with increase in temperature in case of liquid.