0
Why do hydrocarbons with more carbons have a higher boiling rate?
Wiki User
∙ 13y ago
More van der Waals' forces to break hence a higher temperature required to break them all
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
What has the higher boiling point C2H6 or C3H8?
C20h42
Do long hydrocarbons have a higher boiling point then short hydrocarbons?
This is true as far as we are talking about alkanes. As the size of an alkane chain increases the boiling point increases because the relatively low van der Waals forces increase with mass. The higher the vdw forces the more energy required to break apart two molecules and thus higher boiling points.
What types of hydrocarbons are more abundant in higher-octane gasoline?
smaller and less massive hydrocarbons :)
How does the size of and number of atoms contained in a hydrocarbon affect its properties?
As the base number of carbon atoms in a simple hydrocarbon increases, the higher the potential energy contained in the compound. More complex hydrocarbons can also have shifting melting and boiling ranges.
How does the number of carbon atoms in a hydrocarbon atom affect its boiling point?
The more is the number of carbons in the alkane, the more is its boiling point.REASON:- As the number of carbon increases, the becomes the molecular mass. And the more is the molecular mass, the greater becomes the surface area which increases the van der Waal force of intermolecular attraction thereby increasing the boiling point of the alkane.NOTE:- Among isomers (of the same alkane), the structure which have more # of side chain has less BP because more the # of side chains are present, more will the structure will be closer to the shape of a sphere, therefore will have smaller surface area.-by spd831
What has the higher boiling point C2H6 or C3H8?
C20h42
Do long hydrocarbons have a higher boiling point then short hydrocarbons?
This is true as far as we are talking about alkanes. As the size of an alkane chain increases the boiling point increases because the relatively low van der Waals forces increase with mass. The higher the vdw forces the more energy required to break apart two molecules and thus higher boiling points.
Is it true that in fractional distillation of petroleum low-boiling hydrocarbons come out first?
Yes Since they have a lower boiling point, they have a higher vapor pressure - or to be more exact, a higher fugacity, than the higher boiling point components at the same temperature.
What effect does increasing the number of carbons have on the boiling point?
Increasing the number of carbons in a molecule increase the boiling point in the wast majority of cases.
What are the different hydrocarbons called with different numbers of carbons?
First of all the basic different hydrocarbons are Alkanes, Alkenes , & Alkynes. Their names end in '-ane', '-ene' and 'yne', respectively. There are more complex hydrocarbons, such as Benzene(Phenyl) & 'Cyclo-', but for the moment I'll omit these. Next the number of carbons in the chain gives the basic name. Meth = 1 carbon Eth = 2 carbons Prop = 3 carbons Buta = 4 carbons Penta = 5 carbons Hexa = 6 carbons Hepta = 7 carbons Octa = 8 carbons Nons = 9 carbons Deca = 10 carbons So a hydrocarbon , with single bonds, and with two carbons is Ethane A hydrocarbons, with one double bond and three carbons is Propene A hydrocarbon, with one triple bond and four carbons is either But-1-yne or But-2-yne , depending on which carbon in the chain the the double/triple bond starts at. Petroleum/Gassoline is Octane. Benzene is a 6 carbon cyclic ring, with ,???three double bonds,. This a unique arrangement. Other cyclic hydrocarbons are ;- Cyclohexane , Cyclohexene. and Cyclohex-1,3-diene. There are many more. Hopefully that gives a little insight in to the nomenclature (naming system) of hydrocarbons; The IUPAC authority have designed the nomenclature so that the name gives all the elements, structure and position of the atoms in organic compounds.
What types of hydrocarbons are more abundant in higher-octane gasoline?
smaller and less massive hydrocarbons :)
How does the size of and number of atoms contained in a hydrocarbon affect its properties?
As the base number of carbon atoms in a simple hydrocarbon increases, the higher the potential energy contained in the compound. More complex hydrocarbons can also have shifting melting and boiling ranges.
How does normal boiling points differ from other boiling points of the same liquid?
The normal boiling point is the boiling point at sea level, or more precisely, at 1 atmosphere pressure. At higher elevations, or at lower atmospheric pressures, the boiling point is lower. At higher atmospheric pressures, the boiling point is higher.
How does the number of carbon atoms in a hydrocarbon atom affect its boiling point?
The more is the number of carbons in the alkane, the more is its boiling point.REASON:- As the number of carbon increases, the becomes the molecular mass. And the more is the molecular mass, the greater becomes the surface area which increases the van der Waal force of intermolecular attraction thereby increasing the boiling point of the alkane.NOTE:- Among isomers (of the same alkane), the structure which have more # of side chain has less BP because more the # of side chains are present, more will the structure will be closer to the shape of a sphere, therefore will have smaller surface area.-by spd831
What is the difference between a short-chain and a long-chain hydrocarbon?
short chain hydrocarbons have a low boiling and melting point whereas high chain hydrocarbons have a higher boiling and melting point. Also, short chain hydrocarbons have a low density and higher ones have a higher density. :)
Why does the boiling points of isomeric haloalkanes decrease with increase in branching?
NormallyGenerally a molecule with with a longer carbon chain has higher boiling compared to that of a shorter carbon-hydrogen chain. This is due to greater intermolecular forces exhibited by the longer chain. This is the reason why a carbon chain which consists of 4 or less carbons are gas at room temperatures; while carbon chains with more than 4 carbons are liquids at room temperatures. Branching however can reduce some of these intermolecular forces as the chains are hindered from approaching in close approximately and packing near each other. The packing is caused by the intermolecular attractions between the alkanes.More »
Do isomers boiling points increase or decrease with more branching?
Straight chain isomers have higher boiling points, so the more branched the isomer the lower the boiling point.
