"c) Petrol and diesel are used as fuels for cars. The emissions from three similar sized cars were investigated.
The first car was the oldest, had no catalytic converter and used petrol
The other two cars were only a few years old.
One of these was fitted with a catalytic converter and used petrol and the other
car used diesel
Figure 9 shows the emissions in grams for each kilometre travelled by these three cars.
carbon
monoxide
emissions in gkm
nitrogen carbon
oxides dioxide
carbon
particulates
car with no catalytic converter using petrol
1.60
0.09
180
0.00
car with catalytic converter using petrol
0.67
0.02
180
0.00
car using diesel
0.05
0.19
130
0.02
Figure 9
Discuss and compare the impact on the environment of the emissions from these
three cars using the information from Figure 9.
(6)