RE: Explain, Why a blanket which keeps us warm in winter is able to protect ice from melting?

My problem is to know why a blanket which keeps us warm in winter is able to protect ice from melting.

Administrator Premier Asked on November 13, 2017 in Physics.
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1 Answers

The insulating action of the blanket is due to the air trapped in its fine pores, the air is a bad conductor of heat. Moreover, convection current cannot be set up in the trapped air.

When we cover our body with a blanket, the trapped air prevents heat transmission from our body to the outside, as a result our body is kept warm. When ice is covered with a blanket, the same trapped air prevent the heat transmission from outside to the ice hence ice does not melt.

Premier Answered on November 13, 2017.
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