Question
Download Solution PDFIt is easier to wash clothes in hot water because:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe Correct answer is Option 2.
Important Points
CONCEPT:
- Surface tension: Surface tension is a force per unit length acting in the plane of interface between the liquid and the bounding surface.
- Its unit is ‘N/m’ and the dimensions are [MT-2].
- Surface tension is a property that arises due to the intermolecular forces of attraction among the molecules of the liquid.
- Greater are the intermolecular forces of attraction; higher is the surface tension of that liquid.
EXPLANATION :
- The surface tension decreases as the temperature increases.
- The surface tension of hot water is very less compared to cold water and thus that makes washing clothes easier in hot water
- Hence, option 2 is the answer
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