मराठी

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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प्रश्न

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?

लघु उत्तर
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उत्तर

The specific heat capacity of substance B is lesser than that of A. So, for same mass and same heat energy, the rise in temperature for B will be more than that of A. Hence, substance B is a good conductor of heat.

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 11: Calorimetry - EXERCISE-11(A) [पृष्ठ २७०]

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सेलिना Concise Physics Part 2 [English] Class 10 ICSE
पाठ 11 Calorimetry
EXERCISE-11(A) | Q 15. | पृष्ठ २७०

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A refrigerator converts 100 g of water at 20°C to ice at -10°C in 35 minutes. Calculate the average rate of heat extraction in terms of watts.

Given: Specific heat capacity of ice = 2.1 J g-1°C-1

Specific heat capacity of water = 4.2 J g-1°C-1

Specific latent heat of fusion of ice = 336 J g-1


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Read the passage and answer the questions based on it.

If heat is exchanged between a hot and cold object, the temperature of the cold object goes on increasing due to gain of energy and the temperature of the hot object goes on decreasing due to loss of energy. The change in temperature continues till the temperatures of both objects attain the same value. In this process, the cold object gains heat energy and the hot object loses heat energy. If the system of both the objects is isolated from the environment by keeping it inside a heat-resistant box then no energy can flow from inside the box or come into the box. In this situation, we get the following principle.
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Which of the following substances (A, B and C) has the highest specific beat?


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