The Water Equivalent Of A Copper Calorimeter Is 4.5 G. If The Specific Heat Of Copper Is 0.09 Cal.g–1oC–1 the

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Question

The water equivalent of a copper calorimeter is 4.5 g. If the specific heat of copper is 0.09 cal.g–1oC–1 the

Solution

Correct option is

Heat required to melt 15 gm of ice placed in the calorimeter will be 1200 cal

 

W = ms

or                   

The thermal capacity and the water equivalent of a body have the same numerical value.

Also                .

Since the temperature remains constant during the process of melting, no heat is exchanged with the calorimeter and hence 

SIMILAR QUESTIONS

Q1

A geyser, operating on LPG (liquefied petroleum gas) heats water flowing at the rate of 3.0 litres per minute, from 27oC to 77oC. If the heat of combustion of LPG is , how much fuel in grams is consumed per minute?

Q2

A copper block of mass 2 kg is heated to a temperature of 500oC and then placed in a large block of ice at 0oC. What is the maximum amount of ice that can melt? The specific heat of copper is 400 j  and latent heat of fusion of water is .

Q3

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Q6

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Q7

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Q8

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Q9

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Q10

A slab of stone of area 0.34 m2 and thickness 10 cm is exposed on the lower face to steam at 100oC. A block of ice at 0oC rests on the upper face of the slab. In one hour, 3.6 kg of ice is melted. Assume that the heat loss from the sides is negligible. The latent heat of fusion of ice is  What is the thermal conductivity of the stone in units of Js–1m–1oC–1?