Lubricating oil and kerosene are two hydrocarbon fractions obtained from the fractional distillation of crude oil. At room temperature, lubricating oil is significantly more viscous than kerosene.
Explain, in terms of their molecular structures and intermolecular forces, why lubricating oil has a higher viscosity than kerosene.
130 exam-style questions on Edexcel GCSE Chemistry 9.1 Fuels, covering 9.1.1 Hydrocarbons and crude oil, 9.1.2 Fractional distillation of crude oil and its fractions, 9.1.3 The alkanes as a homologous series, 9.1.4 Complete and incomplete combustion, 9.1.5 Pollutants from burning fuels, 9.1.6 Hydrogen as a fuel and non-renewable fossil fuels, and 9.1.7 Cracking of larger alkanes. Each one has a worked solution and a mark scheme showing where the marks go.