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What Do You Understand by the Following Statements: the Specific Heat Capacity of Lead is 130 Jkg - Physics

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प्रश्न

What do you understand by the following statements:

The specific heat capacity of lead is 130 Jkg-1K-1.

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उत्तर

Specific heat capacity is the amount of heat energy required to raise the temperature of unit mass of a substance through 1°C or 1 K. Thus, 130 Jkg-1K-1 of heat energy required to raise the temperature of unit mass of lead through 1 K.

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
2015-2016 (March) Science Paper 1

संबंधित प्रश्‍न

In an experiment on the specific heat of a metal, a 0.20 kg block of the metal at 150 °C is dropped in a copper calorimeter (of water equivalent 0.025 kg) containing 150 cm3 of water at 27 °C. The final temperature is 40 °C. Compute the specific heat of the metal. If heat losses to the surroundings are not negligible, is your answer greater or smaller than the actual value for the specific heat of the metal?


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What do you mean by the following statement?

The specific heat capacity of copper is 0. 4 Jg-1 K-1?


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A substance is heated at a constant rate from a low temperature to a high temperature. A graph of temperature against time is shown in the figure. Which part or parts of the graph correspond(s) to the substance existing in two states?


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 SI unit of heat is .........


Specific heat capacity of a substance A is 3.8 J g-1 K-1 and of substance B is 0.4 J g-1 k-1. Which substance is a good conductor of heat? How did you arrive at your conclusion?


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Give one example where high specific heat capacity of water is used as heat reservoir.


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