Thermal Physics Book Back Questions

10th Standard

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Science

Time : 00:45:00 Hrs
Total Marks : 30
    2 x 1 = 2
  1. The value of universal gas constant

    (a)

    3.81 J mol–1 K–1

    (b)

    8.03 J mol–1 K–1

    (c)

    1.38 J mol–1 K–1

    (d)

    8.31 J mol–1 K–1

  2. In the Given diagram, the possible direction of heat energy transformation is

    (a)

    A\(\leftarrow\)B, A\(\leftarrow\)C, B\(\leftarrow\)C

    (b)

    A\(\rightarrow\)B, A\(\rightarrow\)C, B\(\rightarrow\)C

    (c)

    A\(\rightarrow\)B, A\(\leftarrow\)C, B\(\rightarrow\)C

    (d)

    A\(\leftarrow\)B, A\(\rightarrow\)C, B\(\leftarrow\)C

  3. 3 x 1 = 3
  4. Hotness or coldness of an object is called _____

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    Temperature

  5. The process of heat transfer directly from molecule to molecule is called ______

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    conduction

  6. Transfer of energy between any two objects due to difference in temperature is called _____

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    Thermal (or) heat energy

  7. 4 x 1 = 4
  8. Superficial expansion

  9. (1)

    change in area

  10. Cubical expansion

  11. (2)

    hot body to cold body

  12. Heat transformation

  13. (3)

    change in volume

  14. Boltzmann constant

  15. (4)

    1.381 x 10-23 JK-1

    3 x 2 = 6
  16. Distinguish between ideal gas and real gas.

  17. What is co-efficient of real expansion?

  18. What is co-efficient of apparent expansion?

  19. 2 x 4 = 8
  20. With an illustration, explain the method of Calculation for linear expansion of an object.

  21. With an illustration, explain the method of Calculation for cubical expansion of an object.

  22. 1 x 7 = 7
  23. Derive the ideal gas equation.

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