Flow of Heat

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Flow of Heat: Overview

This Topic covers sub-topics such as Transfer of Heat, Thermal Equilibrium and, Condition for Heat Exchange

Important Questions on Flow of Heat

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What is the importance of contact thermal resistance?

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Define the term thermal contact.

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When two bodies are in thermal equilibrium they will have equal?

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What happens when two objects are in thermal equilibrium?

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What is meant by thermal contact and thermal equilibrium?

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What happens at thermal equilibrium?

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A metallic plate at 60 oC is dipped in a bucket containing water at 60 oC. The heat flow will be in which direction?
(Plate to water/water to plate/ no heat flow)

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Thermos flask is a special vessel that keeps hot liquids hot and cold liquids cold.

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An iron ball at 40  is dropped in a mug containing water at 40 . The heat will _____.

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The _____ of a body is a measure of hotness or coldness of a body.

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SI unit of heat is kelvin and SI unit of temperature is joule.

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What is the SI unit of heat?

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What is the SI unit of temperature? (Kelvin, Celsius)

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A marble tile appears much colder as compared to a wooden tile on a winter morning because:

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The handle of a metallic frying pan is made up of plastic because

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Choose the correct answer.
If  a long piece of wood is dipped half into the cold water, then its other half will

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Why do the stainless steel cooking vessels have copper coated bottoms?

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Wool is a _____ conductor  of heat.

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Which of the following are the examples of Insulators?

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Which of the following materials are the bad conductors of heat?