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Why the density is changed of solid subs...

Why the density is changed of solid substances by increase in temperature ?

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Density is changed according to following relation
`rho.=rho(1-gammaDeltaT)`
where `rho=` density at T temperature
`rho.=` density at `(T+DeltaT)` temperature
`gamma=(C_(p))/(C_(V))=` constant
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KUMAR PRAKASHAN-THERMAL PROPERTIES OF MATTER-Section - C Objective Questions (VSQs)
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  2. Whose specific heat is high ? Sand or water ?

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  3. Why the density is changed of solid substances by increase in temperat...

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  4. What is sublimation ? Give name of sublimation substances.

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  5. Give the values of some definite points on standard (Kelvin) scale.

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  6. Write principle of calorimeter.

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  7. Is the value of temperature coefficient is always positive ?

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  8. Write SI and CGS unit of heat and give their relation.

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  9. What is temperature gradient ?

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  10. When temperature gradient is considered as positive and negative ?

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  11. Value of temperature gradient is 80^(@) C/m on a rod of 0.5 m length. ...

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  12. Are rate of heat emission and rate of cooling same ? Explain this.

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  13. What power is gained by a man when he eats 100 g ice in one minute ? L...

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  14. In day of summer the glass of water of ice becomes hot on table with r...

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  15. What is called absolute zero temp ?

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  16. On what does the value of coefficient of linear expansion depend ?

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  17. Give the value of coefficient of volume expansion at 0^(@)C for ideal ...

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  18. Give value of coefficient of volume expansion at room temperature for ...

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  19. On what value of alpha(V) depends ? Write its unit.

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  20. On which fcator does the thermal conductivity depend ?

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