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It is because it is cold in a coal mine.

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Q: Why is boiling point higher than normal when measured at the base of a coal mine?
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How does normal boiling points differ from other boiling points of the same liquid?

The normal boiling point is the boiling point at sea level, or more precisely, at 1 atmosphere pressure. At higher elevations, or at lower atmospheric pressures, the boiling point is lower. At higher atmospheric pressures, the boiling point is higher.


The normal boiling point of chloroform which has a higher vapor pressure than water at 100 degrees celsius is?

higher then the normal boiling point of water


The normal boiling point of chloroform which has a higher vapor pressure than water at 100 and degC is?

The boiling point of chloroform is 61,15 oC.


What happens to the boiling point of a solution as the concentraion increases?

Boiling-point elevation describes the phenomenon that the boiling point of a liquid (a solvent) will be higher when another compound is added, meaning that a solution has a higher boiling point than a pure solvent. This happens whenever a non-volatile solute, such as a salt, is added to a pure solvent, such as water. The boiling point can be measured accurately using an ebullioscope.


How does the boiling point in degrees Celsius of a saltwater solution compare to the boiling point of normal tap water?

The boiling point of salt water will be higher - whichever scale is used to measure the temperature. How much higher will depend on the amount of salt that is dissolved in the water.


Does chlorine or oxygen has higher boiling point?

Chlorine has higher boiling point.


How does pressure affect boiling point?

The boiling point is that temperature when the SATURATEDvapor pressure of a liquidbecomes equal tothe surrounding pressure.Thus the higher the sorrounding pressure, the higher the boiling point.


Why the melting point of arsenic is higher than boiling point?

The melting point is higher than the boiling point of Arsenic only because the melting point is when Arsenic is under pressure because otherwise it would sublimate, or turn directly from a solid to a gas, a the "boiling" point of 614 degrees Celsius and normal atmospheric pressures.


How does salt effect boiling point?

The boiling point is higher.


Which substance has higher boiling point nitrogen fluoride or NH3?

Boiling point of NH3: -33,34 0C Boiling point of NF3: -129,1 0C The boiling point of ammonia is higher.


What happens if boiling point is higher than melting point?

The boiling point is always higher than the melting point.


What is the boiling point of lawrencium?

Not measured