pace yourself
Preparing for an examination is a bit like training for a marathon. You would never leave your marathon training to the day before. You would start with general fitness and short runs - building up: 5k, 8K then 10K etc. You should do similar with your exam preparation.
Goldhill Tutors will ensure that your general subject foundation understanding is secure and complete before starting a training programme with exam style questions and ultimately past papers.
Schools will usually prepare a framework programme of study to help students plan their preparation.
As tutors at Goldhill, we aim to help the student to build on, expand and personalise any revision programme provided by the school .
Goldhill Tutors will ensure that your general subject foundation understanding is secure and complete before starting a training programme with exam style questions and ultimately past papers.
Schools will usually prepare a framework programme of study to help students plan their preparation.
As tutors at Goldhill, we aim to help the student to build on, expand and personalise any revision programme provided by the school .
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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.