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Does a hydrocarbon with large molecules have a higher boiling point that one with small molecules?
Wiki User
∙ 11y ago
Jewish people that's why, oh and spider man and I love Jewish people, if it wasn't for them there probably wouldn't be any McDonald's.
Wiki User
∙ 11y ago
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Are large molecules containing carbon atoms called micromolecules?
Inverse: these molecules are called macromolecules.The meaning of the prefix macro is great in the Greek language.
Are clouds composed of frozen hydrogen molecules?
No, they are large quantities of liquid water droplets.
A large flat area higher than the land around it is?
Canyon
What type of solid is iodine?
Iodine is a molecular solid, the large sized molecules are held together through weak Vander waal's forces so I2 molecules easily become sublimed,
What is a large area of flat land that is higher than the land around it.?
Plateau
What is achieved in the process of cracking?
For anyone who has seen the previous answer ignore the immature remark. "Fuels made from oil mixtures containing large hydrocarbon molecules are not efficient. They do not flow easily and are difficult to ignite. Crude oil often contains too many large hydrocarbon molecules and not enough small hydrocarbon molecules to meet demand - this is where cracking comes in. Cracking allows large hydrocarbon molecules to be broken down into smaller, more useful hydrocarbon molecules. Fractions containing large hydrocarbon molecules are vaporized and passed over a hot catalyst. This breaks chemical bonds in the molecules, and forms smaller hydrocarbon molecules. Cracking is an example of a thermal decomposition reaction." Sources:http://www.bbc.co.uk.education2020.us/
What are some properties you can identify by knowing the melting and boiling point of chemical?
Melting and boiling points are generally higher for large molecules than small, and also higher for polar than for non-polar molecules.
Why are cracking large hydrocarbon molecules more useful than the original large molecules?
There is more demand for smaller molecules because they can make up more fuels and plastics. There is less demand for the larger molecules.
Why is cracking useful?
cracking is useful because large hydrocarbon molecules are broken into smaller ones. And these are needed for petrol and are more reactive.
What causes the boiling point of substances to differ?
A boiling point is the temperature at which a liquid becomes a gas in it's surrounding liquids. Just as different materials have different melting points they also have different vaporising points. This is due to the bonding between the molecules. The stronger they are the hotter you must make the liquid to cause it to boil.
Why do you think some hydrocarbons are gases and others are liquid?
Different hydrocarbons have different boiling points (and melting points) depending on their molecular size: smaller molecules boil at lower temperatures, larger molecules boil at higher temperatures. This fact is used to refine petroleum by fractional distillation. Methane has very small molecules and is a gas. Gasoline, diesel fuel, and kerosene have medium size molecules and are liquids. Asphalt has large molecules and is solid.
Why conc sulphuric acid has higher boiling point and is more viscous?
Due to large number of hydrogen bonds viscosity and boiling points of sulphuric acid are high
What compound makes up hydrocarbon?
Hydrocarbons are compounds composed solely of hydrogen and carbon atoms. They can range in size from small molecules, such as methane (CH4), to large complex structures, such as octadecane (C18H38).
Why does octane have a higher boiling point then water?
Octane is a straight chain molecule with a large surface area and stacks easily with other octane molecules. This increases the strength of the London dispersion forces that keep the octane molecules attracted to each other. The London dispersion forces on octane are greater than for smaller straight chain molecules because octane is both heavier and has more electrons that make it more polarizable.
Breaking of a larger hydrocarbon molecule into a smaller one by heating in the presence of a catalyst is called?
Cracking , Cracking is the name given to breaking up large hydrocarbon molecules into smaller and more useful bits. This is achieved by using high pressures and temperatures without a catalyst, or lower temperatures and pressures in the presence of a catalyst.
What are the basic structure of a hydrocarbon and why these molecules are hydrophobic?
Hydrocarbons = Molecules containing only carbon and hydrogen - Are major components of fossil fuels produced from the organic remains of organisms living millions of years ago, though they are not prevalent in living organisms. - Have a diversity of carbon skeletons which produce molecules of various lengths and shapes. - As in hydrocarbons, a carbon skeleton is the framework for the large diverse organic molecules found in living organisms. Also, some biologically important molecules may have regions consisting of hydrocarbon chains (e.g. fats). - Hydrocarbon chains are hydrophobic because the C-C and C-H bonds are nonpolar.
Do the alkane molecules in bitumen have large numbers of carbon atoms or small numbers of carbon atoms?
Large - think they're C25+ The alkane molecules which have small numbers of carbon are Methane (CH4) Ethane (C2H6) etc - they have lower boiling points and are more useful as fuels etc.
