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25. Calorimetry
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Q7 of 41 Page 46

What is the specific heat capacity of

(a) Melting ice


(b) Boiling water?


The specific heat capacity of a body is defined as the amount of heat required to raise temperature of unit mass of a substance by one unit


(a) The specific heat capacity of melting ice is 0.50cal/g-oC or 2093 J/kg-K.


(b) The specific heat capacity of boiling water is 0.46 cal/g-oC or 1926 J/kg-K.


More from this chapter

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5

In Regnault’s apparatus for measuring specific heat capacity of a solid, there is an inlet and an outlet in the steam chamber. The inlet is near the top and the outlet is near the bottom. Why is it better than the opposite choice where the inlet is near the bottom and the outlet is near the top?

6

When a solid melts or a liquid boils, the temperature does not increase even when heat is supplied. Where does the energy go?

8

A person’s skin is more severely burnt when put in contact with 1g of steam at 100°C than when put in contact with 1g of water at 100°C. Explain.

9

The atmospheric temperature in the cities on sea-coast change very little. Explain.

Questions · 41
25. Calorimetry
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