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Posted by U15497559 (U15497559) on Saturday, 10th November 2012
to what extent does the size of its molecules determine the usefulness of a liquid alkane as a fuel? help on question
Posted by The Bitesize Science Teacher (U14392404) on Saturday, 10th November 2012
For liquid alkanes, the larger the size of the molecule, the more viscous (thicker) it is and the less easily it ignites. Petrol contains smaller molecules than diesel, so it is less viscous (more runny) and more flammable (easily ignited).
Posted by U15497559 (U15497559) on Sunday, 11th November 2012
thanks for the help, do anyone know any good revision sites for chemistry
Posted by The Bitesize Science Teacher (U14392404) on Sunday, 11th November 2012
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