Perfect technique
Good knowledge and understanding of a subject is of course an essential requirement for top examination results. However it is not the only requirement. Good examination technique is also needed.
Goldhill Tutors work closely with their students practising past paper questions and developing strategies and approaches to the examinations .
Mock exams are used by schools to give a snapshot of student progress enabling a predicted result to be made. The mock also gives valuable insight into any shortcomings with technique.
Our tutors have access to multiple banks of past papers and mark schemes which are extensively incorporated into tutorials - enabling the student to refine their technique and to ensure they are completely familiar with examination format and structure.
Our tutors have access to multiple banks of past papers and mark schemes which are extensively incorporated into tutorials - enabling the student to refine their technique and to ensure they are completely familiar with examination format and structure.
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Crude oil is separated into its different components (fractions) by a process known as fractional distillation. The mixture of hydrocarbons is heated as it enters the fractionating column. This is a large tower which is much hotter at its base (~ 370oC) than at its top. The fractions which boil the most easily ( bpt < 40oC ) remain gaseous and are tapped off from the top of the tower. Those fractions which have higher boiling points will condense and be tapped off at the higher temperatures lower down the column. Since each fraction has a different boiling point they will condense at different levels in the column and are therefore separated from each other.