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The specific heat of a substance at its boiling point or melting point (a) Is zero (b) Is infinity (c) Is negative (d) Lies between 0 and 1

The specific heat of a substance at its boiling point or melting point
(a) Is zero
(b) Is infinity
(c) Is negative
(d) Lies between 0 and 1

Grade:Upto college level

1 Answers

Saurabh Kumar
askIITians Faculty 2400 Points
9 years ago
We know that when heat energy is absorbed by a substance, its temperature increases. If the
same quantity of heat is given to equal masses of different substances, it is observed that the rise in
temperature for each substance is different. This is due to the fact that different substances have
different heat capacities.
So heat capacity of a substance is the quantity of the heat required to raise the temperature
of the whole substance by one degree.
If the mass of the substance is unity then the heat capacity is called Specific heat
capacity. OR the specific heat.
Q = C m ∆t
Where Q Æ quantity of heat absorbed by a body
m Æ mass of the body
∆t Æ Rise in temperature
C Æ Specific heat capacity of a substance it depends on the nature of the
material of the substance.

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