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The top of lake is frozen. Air in contac...

The top of lake is frozen. Air in contact is at -`15^@ C` What do you expect the maximum temperature of water in contact with the lower surface of ice and

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The top of lake is frozen. Air in contact is at - 15^@ C What do you expect the maximum temperature of water at the bottom of the lake ?

If 10g of water at 8^@C is mixed with one gram of ice at 0^@C . What will be the final temperature of the mixture.

A pond is covered by a sheet of ice 2.0 cm thick (thermal conductivity 1.6 jm^(-1)s^(-1)k^(-1) . The temperature of the lower surface of ice is 0^@ C and that of the upper surface is -10^@ C . At what rate is heat conducted through each square meter of the ice ? What is the direction of this flow of energy ?

When 25 gm of ice at - 20^@C have absorbed 2500 cal of heat, what is the temperature of the resulting water? (latent heat of ice = 80 "cal"//(gm) and specific heat of ice = 0.5 "cal"//(gm)//^@C) .

A fog drop has a diameter of 2xx10^-6 m. Calculate the pressure inside the drop in atmospheres , if the temperature is 20^@ C. Assume the air pressure outside the drop one atmosphere and surface tension of water=0.0727N/m (1atm=1.013xx10^5N/m^2) .

The lower end of glass capillary tube is dipped in water rise to a height of 8cm. The tube is then broken at aheight of 6cm. Then what are the height of water column and the angle of contact.

MBD PUBLICATION-THERMAL PROPERTIES OF MATTER (HEAT PHENOMENA)-QUESTION BANK
  1. A brass disc fits snugly in a hole in a steel plate. Should you have t...

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  2. Explain why a beaker filled with water at 4^@ C overflows if the tempe...

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  3. The top of lake is frozen. Air in contact is at -15^@ C What do you ex...

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  4. The top of lake is frozen. Air in contact is at -15^@ C What do you ex...

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  5. A long cylindrical vessel having a linear coefficient of expansion alp...

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  6. What should be the length of steel abd copper rods at 0^@C so that the...

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  7. A steel rod is 3.000 cm in diameter at 25^@C. A brass ring has an inte...

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  8. A clock with an iron pendulum keeps correct time at 20^@C. How much wi...

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  9. A brass disc at a 20^@C has a diameter of 30 cm and a hole cut in the ...

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  10. In what equilibrium,, temperature of two bodies are same.

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  11. Read the statement carefully and write 'Yes' for correct statements an...

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  12. What is the unit of heat in SI.

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  13. State Zeroth law of thermodynamics.

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  14. What is Triple point of water in Kelvin's scale ?

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  15. What is highest reading in a reaumur scale ?

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  16. What is the unit of coefficient of expansion ?

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  17. What is related to work by J ?

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  18. What is the value of J in SI system ?

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  19. Evaporation causes cooling. Explain.

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  20. What we call the P-V curve at constant temperature ?

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