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प्रश्न
What do you understand by the following statements:
The heat capacity of the body is 60JK-1.
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उत्तर
Heat capacity is the amount of heat required to raise the temperature of a body by 1°C or 1 K. Thus, 60 JK−1 of energy is required to raise the temperature of the given body by 1 K.
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संबंधित प्रश्न
The temperature of 170 g of water at 50°C is lowered to 5°C by adding a certain amount of ice to it. Find the mass of ice added.
Given: Specific heat capacity of water = 4200 J kg-1 °C-1 and specific latent heat of ice = 336000 J kg-1.
Name the S.I. unit of heat.
Define heat capacity.
State, with reason, which of the two, boiling water or steam both at 100°C will produce more severe burns.
Ice-cream at 0°C feels colder than water at 0°C. Give reason for this observation.
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’.
- Where does heat transfer take place?
- In such a situation which principle of heat do you perceive?
- How can this principle be explained in short?
- Which property of the substance is measured using this principle?
What is specific heat capacity?
A diatomic gas undergoes adiabatic change. Its pressure 'P' and temperature 'T' are related as p ∝ Tx, where x is ______.
Which of the substances P, Q, or R has the lowest specific heat? The temperature v/s time graph is shown ______.
