properties of the main fractions of crude oil

Cards (8)

what is viscosity?
refers to the ease + flow of a liquid
what would a high viscosity liquid look + move like?
would be thick + flow less easily
what happens if the number of carbon atoms increases?
the attraction between the hydrocarbon molecules also increases
what happens as the carbon chain lengths increase?
the colour of the liquid gets darker as it gets thicker + more viscous
what happens as the molecules in the crude oil get larger?
the intermolecular attraction becomes greater
how does the molecular size affect the boiling point + why?
as the molecular size increases so does the boiling point
because more heat is needed to separate the molecules
what is volatility?
refers to the tendency of a substance to vaporise
what happens to volatility when the molecular size increases?
the hydrocarbon liquids become less volatile