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Topic: Science
Number of pages / Number of words: 3 / 577
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More energy is needed to separate them than short molecules which have only weak forces of attraction for each other.

FOCUS ON FOSSIL FUELS

Petroleum refining

Crude oil is a complicated mixture of hydrocarbons, with a varying composition depending on its source. The hydrocarbons in crude oil have different boiling points, according to the number of carbon atoms their molecules contain and how they are arranged...


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The hydrocarbons in crude oil have different boiling points, according to the number of carbon atoms their molecules contain and how they are arranged. Fractional distillation uses the difference in boiling point to separate the hydrocarbons in crude oil. The fractionating column is cooler at the top than the bottom, so the vapours cool as they rise...


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Analysing McDonalds (fast food outlets) using the Porters 5 forces model – sometimes called the Competitive Forces model. Strong Or Weak Dollar Is Better? THE CURRENT ENERGY MARKET AND LINKS BETWEEN ENERGY PRICE AND BUSINESS PROSPERITY What is Porter's 5 Forces analysis? What are the main aspects of Porter's 5 Forces analysis? How to write Good Porter's 5 Forces analysis of a company? Where to find information for Porter's 5 Forces analysis. Europe - Strong Union or Weak Sample of Nations ?Essentially a weak dictator' do you agree with this view of Adolf Hitler WAS HITLER A WEAK DICTATOR? Animal Farm: Strong Vs Weak weapons of the weak Detection Of Biological Molecules Molecules Viruses: Complex Molecules Or Simple Life Forms? What kind of molecules can and cannot pass easily across a lipid bilayer? Attraction Organic Molecules Challenge

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