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Ideal Gas Equation

The surface o...

Question

The surface of a lake is at $2^{o} C$ and depth of the lake is $20 m$ . Find the temperature of the bottom of the lake?

A

552^{o} C

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B

42^{o} C

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C

4^{o} C

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D

825^{o} C

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Solution

The correct option is C $4^{o} C$
It depends upon a number of factors like- how deep is the lake, how long has the temperature been at 2C, is there any movement in the water, are there any streams entering or leaving the lake .
For deep lakes with no heat sources and no movement, the temperature at the bottom will be 3.98C, because water at that temperature is at its most dense.

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