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Answered 2011-12-28 07:53:14

Because the only force holding methyl substituted butane together is a very weak dispersion force and it is not very heavy so it pretty much wants to be a gas.

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Butane has higher melting and boiling points.


n-butane : Melting point −138.4 °C (135.4 K), boiling at −0.5 °C (272.6 K)iso-butane (methylpropane): Melting point -159.6 °C, (114 K) , boiling at -11.7 °C, (261 K)


Butane has a boiling point of −0.5 °C (272.6 K) and a melting point of −138.4 °C (135.4 K).


The melting and boiling points are different. Butane has a melting point of 135.4K and 2-methylpropane [isobutane] has a melting point of 114K. The boiling point of Butane is 272.6K and isobutane @ 261K. It has to do with there structures. J


-138 degree celsius is the melting point. The boiling point is -0.5 degrees celsius.


Butane (C4H10) Melting points: -140 to -134 °C, 133 to 139 K, -220 to -209 °F Boiling points: -1 to 1 °C, 272 to 274 K, 30 to 34 °F


butane has the higher boiling point.


Butane will be in liquid state at -25 degree Celsius as its melting point is around -135 degrees Celsius and its boiling point is around -1 degree Celsius.


butane is a liquid. It is burning in its boiling pint.


The boiling point of butane is roughly -1.1oC.


boiling point is dependent on surface area as no of branches increas the molecules tends to occupy less surface area


Butane has a boiling point of 0.5 degrees centigrade


Butane it has a boiling point of 0.5 Degrees Centigrade


there is no difference. zippo lighter fluid IS either butane or 100% naptha.


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because of difference in structure propane (C3H8) has bigger molar mass then butane (C4H10) the molecules of butane are heavier and the forces between them are stronger as in propane, because of this more energy is needed to transfer liquid butane to gas



basically there is no difference between the two isomers of butane .actually isomers are similar compounds with different possible skeletal structures ;for example ,butane is a hydrocarbon with 4 carbon atoms ,so its possible isomers are- n-butane and iso-butane.


Freezing point of butane is −138.4 °C (135.4 K). Boiling point. −0.5 °C (272.6 K)


Butane is a smaller molecule, so the London Dispersion forces between molecules of butane hold the molecule together better than the London Dispersion forces of a hexane molecule. In short, it requires more energy to separate butane molecules from each other than hexane molecules.


The geometric structure of butane allows closer packing between molecules than can be achieved with 2-methylpropane, increasing the total van der Waal's forces in the butane solid and raising its melting point compared with that of 2-methylpropane.


Butane normally will instantly dryup in seconts so that's a tough one. Ask Google


Propane has the chemical formula C3H8. Butane has the chemical formula C4H10.


butane is a hydrocarbonbutanol is an alcoholThey both have the same number of carbon atoms.


Both compounds are straight chained alkanes. (General formula CnH2n-2) The general rule is the bigger the molecule in a group of similar compounds the higher boiling point it has. Methane is C1, butane is C4 - much bigger.