हिंदी

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 उत्तरीय
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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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अध्याय 11: Calorimetry - EXERCISE-11(A) [पृष्ठ २७०]

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

संबंधित प्रश्न

A solid of mass 50 g at 150 °C is placed in 100 g of water at 11 °C when the final temperature recorded is 20 °C. Find the specific heat capacity of the solid. (specific heat capacity of water = 4.2 J/g °C)


What do you mean by the following statement?

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


Give one example where high specific heat capacity of water is used as cooling purposes?


Explain the meaning of green house effect.


Name and state the principle used to measure the specific heat capacity of a substance.


(i) State whether the specific heat capacity of a substance remains the same when its state changes from  solid to liquid. 
(ii) Give one example to support your answer.


Is it possible to condense the water formed, back to ice by adding ice at 0°C. Explain with reason.


If, in a central heating system, steam enters a radiation pipe at 100°C and water leaves the radiation pipe at 100°C, can this radiation pipe heat a room? Give an explanation for your answer.


Derive an expression for finding out the specific heat capacity of a body (solid) from the readings of an experiment given below:

(i) Mass of empty calorimeter (with stirrer) = m1 gm

(ii) Mass of the metal piece = M gm

(iii) Mass of colorimeter and water = m2 gm

(iv) Initial temperature and water = t1°C

(v) Temperature of hot solid (metal piece) = t2 °C

(vi) Final temperature of the mixture = t°C

(vii) Specific heat of calorimeter = 0.4 J gm / °C


A block of ice of mass 120 g at temperature 0°C is put in 300 gm of water at 25°C. The xg of ice melts as the temperature of the water reaches 0°C. The value of x is ______.

[Use: Specific heat capacity of water = 4200 Jkg-1K-1, Latent heat of ice = 3.5 × 105 Jkg-1]


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