Q.

The boiling point of water depends upon the –

A. atmospheric pressure
B. volume
C. density
D. mass
Answer» A. atmospheric pressure
Explanation: The boiling point corresponds of water to the ternperature at which its vapour pressure equals the surrounding environmental pressure. So it is dependent on theatmospheric pressure. For example, at higher altitudes, the atmospheric pressure decreases. As this pressure decreases, the boiling point of the water also decreases.
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