CHAPTER 13 : CALORIMETRY AND MECHANICAL EQUIVALENT OF HEAT
In this chapter we will consider the change in internal energy
of a system, when heat energy is exchanged with it, and ignore the
changes in the external energy of the system. When the substance
remains in the same state then the change in internal energy is
proportional to the change in temperature, whereas when the substance
changes its state (eg. from solid to liquid) the change in internal
energy is manifested in terms of the difference of internal energy
in the two states and not as the change in temperature.
13.1 Heat Capacity (H), Water Equivalent (W) & Specific Heat (C)
Heat Capacity (H)
The amount of heat required to change the temperature by
10K of a substance is called its Heat Capacity.
Q : Amount of Heat energy
q : temperature
DQ : change in the amount of heat energy
Dq : change in the temperature
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Index
13.1
Heat Capacity, Water Equivalent & Specific Heat 13.2
Latent Heat of Fusion, Freezing, Vaporization and Condensation 13.3
Mechanical Equivalent of Heat
Chapter 14
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