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Newton's law of cooling is applicable fo...

Newton's law of cooling is applicable for

A

convection losses

B

natural convection losses

C

forced convection losses

D

conduction losses

Text Solution

Verified by Experts

The correct Answer is:
C
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A calorimeter of negligible heat capacity contains 100 g water at 40 ^(@)C . The water cools to 35^(@)C in 5 min. If water is now replaced by a liquid of the same volume as that of water at the same initial temperature it cools to 35 ^(@)C in 2 min. Given specific heats of water and liquid are 4200 J kg^(-1)^(@) C^(-1) and 2100 J kg^(-1)^(@)C^(-1) respectively. Find the density of liquid give the answer in kg m^(-3) . [Assume Newton law of cooling is applicable]

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Knowledge Check

  • A body cools from a temperature 3 T to 2 T in 10 minutes. The room temperature is T . Assume that Newton's law of cooling is applicable. The temperature of the body at the end of next 10 minutes will be

    A
    `(4)/(3) T`
    B
    `T`
    C
    `(7)/(4) T`
    D
    `(3)/(2) T`

  • Newton's law of cooling is also applicable to

    A
    forced convection losses
    B
    convection losses
    C
    natural convection losses
    D
    none of these

  • Newton's law of cooling is valid for

    A
    law temperature
    B
    high temperature
    C
    small temperature difference
    D
    large temperature difference

    • Similar Questions

    Explore conceptually related problems

    A calorimeter of negligible heat capacity contains 100 g water at 40^(@)C . The capacity contains 100 g water at 40^(@)C . The water cools to 35^(@)C is 5 min. If water is now replaced by a liquid of the same volume as that of water at the same initial temperature it cols to 35^(@)C in 2 min. Given specific heats of water and liquid are 4200Jk^(-1)""^(@)C^(-1) and 2100Jkg^(-1)""^(@)C^(-1) respectively. Find the density of liquid give the answer in kgm^(-3) . [Assume Newton law of cooling is applicable]

    Newton laws OF cooling

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    Newton's law of cooling is a special case of .

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