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The amount of heat required to change th...

The amount of heat required to change the state of unit mass of a substance at constant temperature and pressure is called _______ of the substance. Its SI unit is __________ .

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SL ARORA-Thermal Properties of Matter-Exercise
  1. What is the melting point of a substance?

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  2. Melting of ice due to applied pressure, getting converted back into ic...

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  3. The amount of heat required to change the state of unit mass of a subs...

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  4. Specific heat of water at 20^@C is and that of ice is

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  5. The state of the rod, in which temperature of each part becomes consta...

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  6. The rate of flow of heat per unit area per unit temperature gradient a...

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  7. Solids are heated by the process of while liquids and gases are heate...

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  8. Conduction and convection are processes while radiation is a process...

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  9. The dimensional formula of the coefficient of thermal conductivity is ...

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  10. The ratio of the temperature difference between the ends of a conducto...

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  11. What is thermal conductivity of a perfect heat conductors of a perfect...

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  12. The temperature gradient in a rod of 0.5 m long is 80^(@)C//m. If the ...

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  13. Stainless steel cooking pans are perferred with extra copper bottoms. ...

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  14. Two stars radiate maximum energy at wavelengths 3.6xx10^(-5)cm and 4.8...

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  15. Two rods A and B are of equal length. Each rod has the ends at temp T(...

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  16. (True/False): Thermometers with spherical bulbs are more sensitive tha...

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  17. Why a clinical thermometer should not be sterilized by boiling water?

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  18. Gas thermometers are more sensitive than liquid thermometers.

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  19. A brass disc fits snugly in a hole in a steel plate. Should you heat o...

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  20. A tightnened glass stopper can be taken out easily by pouring hot wate...

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