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CHETANA PUBLICATION-THERMAL PROPERTIES OF MATTER-EXERCISE
- Explain the following application of convection. (1) Heating and coo...
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- Explain the following application of convection. (2) Cooling of tran...
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- State some applications of convection.
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- What is meant by " free convection" and " forced convection".
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- What is "radiation"? Explain "heat transfer by radiation".
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- What is "Newton's law of cooling"? Explain.
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- A metal sphere cools from 80^@C to 60^@C in 6 minutes. How much time w...
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- If 50 gm of water at 0^@C is added to 250 gm of water at 90^@C. Find t...
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- 30 gm of ice at 0^@C is placed in a calorimeter of mass 20 gm also at ...
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- How many grams of ice at 0^@C should be added to 200 gm. of coffee at ...
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- The door of a refrigerator is 150 cm. high, 80 cm wide and 6 cm thick....
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- When holes are dug into the Earth, it is found that for a depth of eve...
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- Calculate the thermal resistance of 1 square metre of window glass pan...
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- A body cools at the rate of 4^@C per minute when its temperature is 70...
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- A steel tyre is 100 cm in diameter at 25^@C. To what temperature must ...
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- The length of an iron rod at 100^@C is 300.36 cm and at 150^@C it is 3...
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- By how much will a steel bar one metre long expand when heated from 25...
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- At 20^@C, the gap between the rails each 50 m in length is observed to...
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- Railway lines are laid with gaps to allow for expansion. If each line ...
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- A steel tyre of 1.2 m inner diameter at 20^@C is to be fitted on a car...
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