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How does a change in heat affect the non-polar molecules compared to polar molecules Which one would boil faster? How do you know when a molecule is in the gas phase?

User Sam Storie
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Answer and Explanation:

Remember that the boiling point shows the temperature of a substance when it reaches the vapor phase.

It is common to see the application of heat to certain substances in boiling, for example, in water, the boiling point at 1 atm would be 100 ° C (373 K).

Remember that water is a polar molecule, so if we compare a polar substance such as water with a non-polar substance (ie, gas nitrogen, N2), you can note that the boiling point of the non-polar substance would be smaller. This is because non-polar molecules contain weaker forces than polar substances and heat "breaks" the bond between these forces to reach the gas phase, so it is more difficult to break strong forces such as the polar molecules.

At ambient temperature, we can identify at a glance if a molecule is in the gas phase by reviewing if it's a polar or nonpolar molecule. Many nonpolar molecules, at ambient temperature, are in the gas phase such as hydrogen gas (H2), oxygen gas (O2), nitrogen gas (N2), methane (CH4), etc.

User Chesterfield
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