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Standard XII

Chemistry

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?

552^{o} C

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42^{o} C

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4^{o} C

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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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The surface of a lake is at 2oC and depth of the lake is 20 m. Find the temperature of the bottom of the lake?

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?