Thursday 25 September 2008

Heat Capacity


What can you conclude from the animation?
They are having an increase in temperature when heat is given, aren't they?
The term we used to describe that matter will increase in temperature when heat is given is said HEAT CAPACITY.
At the same heat given but difference in mass, will also give a difference in temperature raise.
Now observe below animation


What can you observe from the experiment?
Both metals is increasing in temperature, however, copper will increase higher compare than aluminum, why is that?
The heat capacity of copper can be said is lower than aluminum when the same heat is given but the raise of temperature of copper is higher than aluminum.
Now, can you figure out which matter will have higher amount of heat capacity? That's right, the one with higher amount of heat capacity, mostly are isolators.

We can say that heat given will be transferred by matters to increase their former temperature.
Amount of the temperature raise depends on :
  • Mass of matter (from the first animation, it shows that higher mass will have lower temperature raise and so on)

  • Kind of matter (from the second animation, it shows that different matter has different heat capacity)
In short, we will get this equation




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