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प्रश्न
Distinguish between heat and temperature.
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उत्तर
Heat is a form of energy obtained due to the random motion of molecules in a substance but temperature is a quantity which decided the direction of flow of heat when two bodies at different temperature are placed in contact. Two quantities having the same amount of heat may differ in temperature.
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संबंधित प्रश्न
Who is telling the truth?
Heat flows from an object at higher temperature to an object at lower temperature.
Why does a piece of ice when touched with a hand, appear cool? Explain.
Explain the three modes of transfer of heat.
Explain the following:
In a solid, heat is not transferred by the process of convection.
The following figure shows a container in which a lighted candle has been kept. The container has two openings, p, and Q. Which way the smoke from an external source placed near P moves when it reaches P and leaves from Q. Give a reason for your answer.
Assertion: Temperature is the measure of heat energy.
Reason: Energy is the capacity to do work.
What will be the final temperature if 1,68,000 J of heat is absorbed by 2 kg of water at 30°C?
