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Explain why some rubber-like substances ...

Explain why some rubber-like substances contract with rising temperature.

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PHYSICS GALAXY - ASHISH ARORA-HEAT AND THERMAL EXPANSION-DISCUSSION QUESTION
  1. Explain why some rubber-like substances contract with rising temperatu...

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  2. Two thermometer are constructed in the same way except that one has a ...

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  3. Two large holes are cut in a metal sheet. If this is heated, will thei...

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  4. A long metal rod is bent to form a ring with a small gap if this is he...

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  5. A tightnened glass stopper can be taken out easily by pouring hot wate...

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  6. The latent heat of fusion of a substance is always less than the laten...

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  7. Comment on the following statements. (a) Evaporation produces coolin...

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  8. Is boiling of a liquid is possible without supplying heat?

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  9. Why an ice block melt at the bottom first?

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  10. In summers water kept in a pitcher is cooler as compared to water kept...

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  11. Wet clothes dry faster on a winter day than on a summer day. Explain.

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  12. Why does it take longer to cook food in the mountains than in the plai...

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  13. A flat uniform cylinder of lead floats in mercury at 0^(@)C. Will the ...

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  14. The Pyrex glass is having very low coefficient of linear expansion. It...

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  15. Which will evaporation faster, water or alcohol ?

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  16. Why does water in a steel container stay cooler if a cloth jacket surr...

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  17. Why does steam cause more severe burns than boiling water ?

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  18. A thermometer is laid out in direct sunlight. Does it measure the temp...

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  19. Thermometers sometimes contain red or blue liquid, which is often etha...

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  20. Coolants are used in automobiles to cool engine. What can you say abou...

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