Atmospheric pressure decreases as altitude increases. In other words, there is m

Question

Atmospheric pressure decreases as altitude increases. In other words, there is more air pushing down on you at sea level, and there is less air pressure pushing down on you when you are on a mountain.

If hexane C6H14, octane C8H18, and octanol C8H17OH are heated evenly at different altitudes, rank them according to the order in which you would expect them to begin boiling.

A) Hexane at high altitude
B) Octane at high altitude
C) Octane at sea level
D) Octanol at sea level

Rank them from boils first to boils last

Explanation / Answer

A) Hexane at high altitude B) Octane at high altitude C) Octane at sea level D) Octanol at sea level The are in the order itself, hexane has less number of carbon then octane and will have lesser boiling point then it, also on high altitude/ and octanol has Hydrogen bonding so you need to provide some extra energy to break those and hence will have the highest boiling point.

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