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Answered 2017-01-27 13:15:50

Ammonia (NH3) has hydrogen bonding intermolecular forces, whereas methane (CH4) does not. In addition, ammonia is polar, and so also has dipole-dipole forces and methane does not. Thus, it takes more energy (higher temperature) to boil and melt ammonia than it does methane.

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Yes, Boiling point of ammonia, NH3: - 33,34 0C Boiling poit of methane, CH4: - 161,6 0C

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.

The boiling point is always higher than the melting point.

Because octane has more carbons, and the more carbons you have the higher the melting point. also octane is a gas that is very close to nonane (which is the first liquid) and that would mean it has a larger boiling point that methane (which is a gas that is the first one CH4). that is why octane has a larger boiling point that methane. Also, you can also figure it out the boiling points of each and look at the differences.

Solids have higher melting and boiling points than liquids and liquids have higher melting and boiling points than gases.

The stronger the IMF, the higher the boiling point and the lower the melting point. The weaker the IMF, the lower the boiling point and the higher the melting point.

the relationship between the melting points and boiling points is simply that the higher the melting point, the higher the boiling point. the metal has to melt before it can boil, so if it didn't melt, it won't boil. there fore, the higher the melting point, the higher the boiling point ill be.

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.

Boiling point of ethanol is higher than its isomer methane due to the presence of hydrogen bond in ethanol

Because the temperature is higher hence make the boiling and melting point higher.

Paraffin is a class of hydrocarbons called Alkane the most basic alkane being methane. Methane has a boiling point of -161 degree Celsius. As it goes higher the bp increases as the energy required to break the hydrogen bonding increases.

Methane is being released from melting ice caps. Ice caps are melting from higher tempetures from green house gases

... gives higher boiling and lower melting point.

Compounds with strong intermolecular forces have higher melting and boiling points.

Metahne does not have a higher boiling point than methane. Fluoromethane, CH3F, has a boiling point of 195K, -78.2C, methane, CH4, has a boiling point of 109K approx -164 C. I make that fluoromethane has a higher temeprature boiling point than methane. This is what you would expect, London dispersion forces will be greater in CH3F as it has more electrons than CH4. CH3F is polar and there will be dipole dipole interactions which will not be present in CH4.

The stronger the intermolecular forces, the higher the melting point and boiling point. The weaker the intermolecular forces, the lower the melting and boiling points are.

The greater the intermolecular attraction, the higher the melting point and boiling point. Melting and boiling are both processes which have to overcome intermolecular attraction.

Because after melting a substance must be heated further, to a higher temperature where the boiling is possible.

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

The intermolecular forces in neon are weaker than those in methane

The freezing point is lower and the boiling point is higher.

The boiling point of methane is NOT higher, but lower than of propane (about 119 degrees lower), as can be seen from the table below:Methane: Bp. −161 °C, 112 KPropane: Bp. -42.1, 231.1 K

non-metals have lower density, melting and boiling point but diamond has higher density, melting and boiling point.

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