Which of the following is the best conductor of heat?
The best conductor of heat among the options provided is mercury. Mercury is a metal with high thermal conductivity, efficiently transferring heat. In contrast, water, wood, and leather are poor conductors of heat.
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The correct answer is [B] Mercury. The best conductor of heat among the options provided is mercury. Mercury is a metal with high thermal conductivity, meaning it can efficiently transfer heat. In contrast, water, wood, and leather are poor conductors of heat. Water has a relatively low thermal conductivity due to its molecular structure, while wood and leather are insulators and do not conduct heat well. Mercury, being a metal, has free-moving electrons that can easily transfer thermal energy throughout its structure, making it an excellent conductor of heat.