मराठी

The specific heat capacity of water is ______.

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प्रश्न

The specific heat capacity of water is ______.

पर्याय

  • 4200 Jkg-1K-1

  • 420 Jg-1K-1

  • 0.42 Jg-1K-1

  • 4.2 Jkg-1K-1

MCQ
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उत्तर

The specific heat capacity of water is 4200 Jkg-1K-1.

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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 Physics [English] Class 10 ICSE
पाठ 11 Calorimetry
EXERCISE-11(A) | Q 3. | पृष्ठ २७०

संबंधित प्रश्‍न

During the phase change does the average kinetic energy of the molecules of the substance increase?


104g of water at 30°C is taken in a calorimeter made of copper of mass 42 g. When a certain mass of ice at 0°C is added to it, the final steady temperature of the mixture after the ice has melted, was found to be 10°C. Find the mass of ice added. [Specific heat capacity of water = 4.2 Jg–1°C–1 ; Specific latent heat of fusion of ice = 336 Jg–1; Specific heat capacity of copper = 0.4 Jg–1°C–1] .


State whether heat energy is absorbed or released during freezing of ice.

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?


Describe a method to determine the specific heat capacity of a solid (say, a piece of copper).


A piece of ice is heated at a constant rate. The variation of temperature with heat input is shown in the graph below:

(i) What are represented by AB and CD?
(ii) What conclusion can you draw regarding the 110°c nature of ice from the above graph?


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.
Heat energy lost by the hot object = Heat energy gained by the cold object. This is called the ‘Principle of heat exchange’.

  1. Where does heat transfer take place?
  2. In such a situation which principle of heat do you perceive?
  3. How can this principle be explained in short?
  4. Which property of the substance is measured using this principle?

Express the change in internal energy in terms of molar specific heat capacity.


If 'Cp' and 'Cv' are molar specific heats of an ideal gas at constant pressure and volume respectively. If 'λ' is the ratio of two specific heats and 'R' is universal gas constant then 'Cp' is equal to ______.


A 0.2 kg metal at 150°C is placed in a copper calorimeter (water equivalent 0.025 kg) with 150 cm³ water at 27°C. Final temperature is 40°C. Find the specific heat of the metal.


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