Question 10

To keep her soup warm, Paheli wrapped the container, in which it was kept with a woollen cloth. Can she apply the same method to keep a glass of cold drink cool? Give reason for your answer.

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Solution

Yes. Wool is a poor conductor of heat. Hence, the water in the glass will stay cold as there is no heat transfer to the surroundings.

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Question 10 To keep her soup warm, Paheli wrapped the container, in which it was kept with a woollen cloth. Can she apply the same method to keep a glass of cold drink cool? Give reason for your answer.

Yes. Wool is a poor conductor of heat. Hence, the water in the glass will stay cold as there is no heat transfer to the surroundings.

Question 10

To keep her soup warm, Paheli wrapped the container, in which it was kept with a woollen cloth. Can she apply the same method to keep a glass of cold drink cool? Give reason for your answer.