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Everyday Science · Physics in Everyday Life · page 40 of 41

Heat & Thermodynamics MCQs with Answers

Includes 24 past paper MCQs (marked).

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Heat & Thermodynamics MCQs (391–400)

10 MCQs with answers and a short one-liner. Hide answers to test yourself.

Past paper MCQs in this chapter · See all past papers

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  1. 391.

    Boyle's and Charles's Laws are readily explained in terms of the _?

  2. 392.

    Which law of thermodynamics states that energy cannot be created or destroyed, only converted from one form to another?

  3. 393.

    The average translational kinetic energy of O2 (relative molar mass 32) molecules at a particular temperature is 0.048 eV. The translational kinetic energy of N2 (relative molar mass 28) molecules in eV at that same temperature is?

  4. 394.

    Past Paper MCQ

    Heat of sun reaches the earth by ?

  5. 395.

    When water boils, its temperature _?

  6. 396.

    A frictionless heat engine can be 100% efficient only if its exhaust temperature is _?

  7. 397.

    If air pressure and temperature increase, what happens to the volume of O₂ and N₂?

  8. 398.

    Why does water boil below 100°C at higher altitudes?

  9. 399.

    The fact that when the temperature of a given gas is held constant, its density is proportional to the absolute pressure. It is another statement of ?

  10. 400.

    The amount of heat required to vaporize one mole of a liquid at its boiling point is called?

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