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3 methyl-amine and ethane have similar molar masses explain why the boiling point of methyl-amine is -6 degrees while that of ethane is -89degrees?
Wiki User
∙ 14y ago
3-methyl amine, aka methyl amine, conatins N-H bonds (polar covalent bonds). Ethane contains only C-H bonds (non-polar covalent bonds). Since the N-H bonds are polar and Nitrogen being more electronegative (ability to attract electrons), it has a slighly negative charge by pulling the elecrons from the hydrogen it is bonded to, giving the Hydrogen a slighly positive charge. The positive H's of one molecule will be attracted to the negative N's of another molecule. This is the force that 'holds' the molecules close to each other. This is why it takes more kinetic energy (temperature) to convert it to a gas than ethane, which essentially has no charge and subsequently very little attraction to other ethane molecules.
Wiki User
∙ 14y ago
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