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why not coefficient of the apparent expansion of the liquid =coefficient of the real expansion of the liquid +coefficient of the container expansion.please suggest?

why not coefficient of the apparent expansion of the liquid =coefficient of the real expansion of the liquid +coefficient of the container expansion.please suggest?

Grade:11

1 Answers

Vasantha Kumari
askIITians Faculty 38 Points
7 years ago

When we heat a liquid there is expansion both in the liquid and the vessel too. But the expansion of the vessel is much smaller than the liquid. When we take the expansion of vessel into account

Observed expansion of liquid(or real expansion)= Apparent expansion of the liquid + Expansion of the vessel

The coefficient of apparent expansion of a liquid(ga) is the ratio of observed increase in volume for a unit rise of temperature to the original volume of the liquid.

The coefficient of real expansion of the liquid(gr) is defined as the ratio of actual increase in volume of a liquid for a unit rise in temperature to the original volume of the liquid.

If gg is the expansion of the vessel, then

gr (real expansion)= ga (apparent expansion) + gg(cubical expansion of vessel)

Thanks & Regards,

Vasantha Sivaraj,

askIITians faculty

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