Why does ammonia have a much higher boiling point than methane?

Answer 1

NH3 Has a Higher EN than PH3 and will exhibit Hydrogen bonding. Because of this, NH3 has a stronger bond with PH3 so its boiling point is higher (harder to break bonds, more temperature required).

Answer 2

Ammonia has a higher boiling point then methane because it is a polar molecule, meaning that one part of the molecule has a partial positive charge while the other has a partial negative charge. As a result, ammonia molecules are attracted to each other in a similar manner as magnets are.

Methane, dues to its symmetry, is nonpolar.

Answer 3

NH3 is a polar molecule, so the molecules attract each other like magnets.
CH4 is completely symmetrical, so it is non polar.

Therefore, NH3 has a higher boiling point because it takes more energy to knock its molecules away.

Answer 4

CH3Br is a polar molecules, meaning that one end of the molecule has a partial positive charge wile the other has a partial negative charge. This causes the molecules to be attracted to each other in much the same manner as magnets., making it harder to turn the substance into gas. Methane, by contrast, is nonpolar and so this effect does not apply to it.

CH3Br also has greater molar mass , which gives it stronger "Dispersion" London Forces (inter molecular forces) increasing its boiling point more than the CH4 But this is a relatively minor factor compared with polarity

Answer 5

Ammonia is a strongly polar molecule with a positively charged end and a negatively charged end on each molecule. The creates a strong attractive force between molecules that greatly raised the boiling point. Methane is nonpolar, so the attractive forces between molecules are much weaker.

Answer 6

Both NH3 and HCl exhibit hydrogen bonding as intermolecular forces, whereas CH4 does not. This makes CH4 have a lower boiling point. Since there are 3 hydrogen atoms in NH3 and only 1 in HCl(g), the intermolecular forces would be expected to be greater in NH3 than in HCl.

Answer 7

Ammonia has a much higher boiling point than methane because ammonia molecules can form hydrogen bonds with each other, which results in stronger intermolecular forces compared to the weaker London dispersion forces present in methane molecules. These stronger hydrogen bonds require more energy to break, leading to a higher boiling point for ammonia.

Answer 8

NH3 is heavier then CH4, and NH3 has hydrogen bonding.