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40 gm of water at 70^@C is poured into a...

40 gm of water at `70^@C` is poured into a calorimeter of mass 160 gm, which is at `20^@C`. If the final temperature of the contents is `40^@C`, what is the specific heat of the calorimeter? Specific heat of water = 4200 J /kg/C

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CHETANA PUBLICATION-THERMAL PROPERTIES OF MATTER-EXERCISE
  1. Explain the technique of "Method of mixtures", to determine specific h...

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  2. A calorimeter of mass 50 gm and specific heat capacity 0.42 J g^-1 ^@C...

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  3. 40 gm of water at 70^@C is poured into a calorimeter of mass 160 gm, w...

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  4. What is meant by 'Change of State'?

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  5. Describe the process of change of state for water (from its solid stat...

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  6. What is normal boiling point?

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  7. What happens after point D in temperature - time graph? Can steam be h...

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  8. Why does steam at 100^@C cause more harm to the skin than water at 100...

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  9. What is sublimation?

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  10. What is a 'phase diagram'? What is its use?

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  11. What is meant by phase of a substance?

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  12. Explain a phase diagram.

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  13. Draw temperature v//s heat graph for water at one standard atmospheric...

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  14. What is "critical temperature"?

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  15. What is meant by Latent heat ?

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  16. Define : Latent heat of fusion (Lf) Latent heat of vapourisation (Ly)

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  17. When 0.1 kg of ice at 0 ^@C is mixed with 0.32 kg of water at 35 ^@C i...

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  18. Why is latent heat of vaporisation much larger than latent heat of fus...

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  19. An electric kettle takes 20 min. to heat a certain quantity of water f...

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  20. What are the three modes of heat transfer? Describe each in brief.

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