हिंदी

Give a Mathematical Relation Between Heat Capacity and Specific Heat Capacity

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प्रश्न

Give a mathematical relation between Heat Capacity and Specific Heat Capacity.

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उत्तर

Heat capacity = mass x specific heat capacity

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2017-2018 (March) Set A

संबंधित प्रश्न

Write the approximate value of specific heat capacity of water in S.I. unit.


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


45 g of water at 50°C in a beaker is cooled when 50 g of copper at 18° C is added to it. The contents are stirred till a final constant temperature is reached. Calculate this final temperature. The specific heat capacity of copper is 0.39 J g-1K-1 and that of water is 4.2 J g-1K-1. State the assumption used.


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How will you prove experimentally that different substances have different specific heat capacities?


Read the following paragraph and answer the questions.

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 the 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 (meaning that the energy exchange takes place between the two objects only), then no energy can flow from inside the box or come into the box.

  1. Heat is transferred from where to where?
  2. Which principle do we learn about from this process?
  3. How will you state the principle briefly?
  4. Which property of the substance is measured using this principle?

The specific heat of body is 0.2 cal g-1 °C-1. What is the meaning of this statement?

What change in heat energy occurs when lead at its melting point
solidifies without change in the temperature?


Specific heat capacity C =  ______.


The difference between the two molar specific heats of gas is 9000 J/kg K. If the ratio of the two specific heats is 1.5, calculate the two molar specific heats.


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