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The change of state occurs when the exch...

The change of state occurs when the exchange of heat takes place between

A

the molecules of the substance

B

the molecules and the free electrons

C

the substance and its surroundings

D

earth and body

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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 gue 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 haet energy. If the system of both the objects is isolated from the environment by keeping it inside a heat resistance 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. How will you state the principle briefly?

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 gue 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 haet energy. If the system of both the objects is isolated from the environment by keeping it inside a heat resistance 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. Heat transferred from where to where?

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 gue 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 haet energy. If the system of both the objects is isolated from the environment by keeping it inside a heat resistance 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. Which property of the substance is measured using this principle ?

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 gue 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 haet energy. If the system of both the objects is isolated from the environment by keeping it inside a heat resistance 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. Which principle do we learn about from this process?

Assertion: The basic of Laplace correction was that, exchange of heat between the region of compression and rarefaction in air is not possible. Reason: Air is a bad conductor of heat and velocity of sound in air is large.

Meiosis never takes place in

1.0 kg of liquid water is boiled at 100^@C and all of it is converted to steam. If the change of state takes place at the atmospheric pressure (1.01xx10^5Pa) ,calculate the energy transferredto the system.

TARGET PUBLICATION-Thermal Properties of Matter-Exercise
  1. Calorimeter is used to determine of a substance.

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  2. A system is said to be isolated if

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  3. The change of state occurs when the exchange of heat takes place betwe...

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  4. The upper fixed point on Kelvin scale is

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  5. The point where water in a solid, liquid and gas states co-exists in e...

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  6. Whenever there is a change in the state of a substance, without change...

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  7. The quantity of heat required to convert unit mass of a substance from...

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  8. The unit of latent heat is

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  9. A mode of transfer of heat through a material medium from a point at h...

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  10. All metals are

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  11. Liquids and gases except mercury are

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  12. Which of the following is a slow process?

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  13. The rate of fall of temperature per unit length of the rod, when the r...

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  14. The quantity of heat which crosses unit area of a metal plate during c...

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  15. The dimensions of thermal conductivity are

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  16. The coefficient of thermal conductivity of a ga is proportional to

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  17. C.G.S unit of coefficient of thermal conductivity is

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  18. Large value of coefficient of thermal conductivity is due to

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  19. When hot water is poured in glass beaker.

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  20. The process of transfer of heat due to difference in densities of the ...

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