With a match.
enough petrol to get you to a petrol garage anywhere in the UK
The petrol light comes on because you are very,very low on petrol.
Petrol is typically a light yellow or clear color, while diesel is usually a shade of green or light blue. The color is due to the different additives and dyes used to differentiate between the two types of fuel at petrol stations.
It is telling you that you have run out of petrol. Put petrol in the tank and this warning light will go out.
to my knowledge 5 litres.
Yes
Burning petrol is an exothermic process. It releases heat and light as energy is given off during the combustion of petrol.
To say that petrol is flammable is a bit inaccurate. The fumes of petrol, the gas created when petrol evaporates is extremely flammable. The liquid is not. If it is very cold outside, your petrol might not be evaporating at all, which would make it difficult for you to light it on fire. Either way, I'd recommend that you stop trying to light the petrol in your car on fire with an open flame.
Cool
Yes, petrol is translucent, which means that light can pass through it but objects cannot be seen clearly through it.
When petrol burns, chemical energy stored in the molecules of petrol is converted into heat and light energy. This is a result of the combustion process, where the carbon and hydrogen in petrol react with oxygen to form carbon dioxide and water, releasing energy in the form of heat and light.
Chemical potential energy is stored in petrol. When petrol is burnt, this chemical energy is converted into heat, light, and mechanical energy to power vehicles.