Oil has the capability to disperse as a very thin layer on a water surface. The moleculardiameter of a particular oil is known to be 3 x 10-7 cm. A

quantity of this oil, when placedcarefully on a water surface, eventually spreads to an area of 16 x 104 m2 in amonomolecular layer. a) Calculate the volume of the oil. (7 marks) b.What would be the area of a monomolecular layer produced from a teaspoonful (5 ml)of this oil? (3 marks) The average CO2 emissions from new passenger cars registered in the European Union(EU), Iceland, Norway and the United Kingdom (UK) in 2019 was 122.4 g of CO2 per kilometre (European Environment Agency, 2020). In the year 2000, the figure was 172.1g per kilometre. .If, on average, the annual mileage of a passenger car in the EU is 12,000miles a year, c)calculate its CO2 emission for 2019. (3 marks) d)Then calculate the percentage reduction compared to a passenger car used in the year 2000.