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Term 2 - Heat Two Marks Questions

9th Standard

    Reg.No. :
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Science

Time : 00:45:00 Hrs
Total Marks : 20
    10 x 2 = 20
  1. What is the heat in joules required to raise the temperature of 25 grams of water from 0ºC to 100ºC? What is the heat in Calories?
    (Specific heat of water = 4.18 J/gºC)

  2. How much heat energy is required to change 2 kg of ice at 0ºC into water at 20ºC? (Specific latent heat of fusion of water = 3,34,000J/kg, Specific heat capacity of water = 4200JKg-1K-1).

  3. Heat gained by a body depends upon which factors?

  4. What do you mean by thermal equilibrium?

  5. Define latent heat of fusion?

  6. What is the other name of heat capacity?

  7. Define one calorie.

  8. What is the relation between calorie and Joule?

  9. Who introduced the term latent heat?

  10. What is the minimum possible temperature? Is there also a maximum possible temperature?

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