Statement I : When a capillary tube is dipped into a liquid, the liquid neither rises nor falls in the capillary. The contact angle may be 0∘0∘.Statement II : The contact angle between a solid and a liquid is a property of the material of the solid and liquid as well.In the light of the above statement, choose the correct answer from the options given below.
Question
Statement I : When a capillary tube is dipped into a liquid, the liquid neither rises nor falls in the capillary. The contact angle may be 0∘0∘.Statement II : The contact angle between a solid and a liquid is a property of the material of the solid and liquid as well.In the light of the above statement, choose the correct answer from the options given below.
Solution
The question seems to be incomplete as there are no options provided. However, I can provide an analysis of the statements.
Statement I: This statement is partially correct. When a capillary tube is dipped into a liquid, the liquid will rise or fall in the capillary depending on the adhesive and cohesive forces of the liquid. If these forces are balanced, the liquid will neither rise nor fall. However, a contact angle of 0 degrees typically indicates complete wetting, where the liquid would rise in the capillary.
Statement II: This statement is correct. The contact angle between a solid and a liquid is indeed a property of the material of the solid and liquid. It is determined by the relative strengths of the cohesive forces of the liquid and the adhesive forces between the liquid and the solid.
Without the options, it's hard to provide a definitive answer. But based on the analysis, Statement II is completely correct while Statement I is only partially correct.
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