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CHETANA PUBLICATION-THERMAL PROPERTIES OF MATTER-EXERCISE
- What are the three modes of heat transfer? Describe each in brief.
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- What is thermal conductivity?
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- What is meant by "steady state"?
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- Define temperature gradient.
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- Derive an expression for coefficient of thermal conductivity of a mate...
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- Define coefficient of thermal conductivity. State its MKS unit
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- What ismeant by "thermal resistance"?Explain. State its SI unit and di...
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- Describe three applications of thermal conductivity
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- Give reason, why (i)Cooking is difficult at high altitude.
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- Give reason, why (ii)Cooking is faster in a pressure cooker.
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- Find the temperature difference between two sides of a steel plate 4 c...
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- What is the difference between boiling and evaporation?
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- Explain the process of heat transfer by convection.
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- 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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