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(B) The angle of contact $	heta$ is determined by the balance of surface tension forces at the interface of liquid,solid,and gas.As the temperature i

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Decreases

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(B) The angle of contact $	heta$ is determined by the balance of surface tension forces at the interface of liquid,solid,and gas.As the temperature increases,the cohesive forces between the liquid molecules decrease more rapidly than the adhesive forces between the liquid and the solid surface.Since the angle of contact is inversely related to the strength of the adhesive forces relative to the cohesive forces,a reduction in cohesive force leads to a decrease in the angle of contact.Therefore,the correct option is $(b)$.

When the temperature is increased,the angle of contact of a liquid:

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