Question

1.state the heat values of the following liquid fuels.
petrol,kerosene,diesel and spirit
2.how were coal and petroleum formed?name any two elements derived from coal.
3.differentiate between combustible and non-combustible please don't spam

​

Answer 1

Answer:

1 petrol 2 allumnian 3 it has been hated

Answer 2

Answer:

1. heat values

petrol:- 44-46MJ/kg

kerosene :- 43.1 MJ/kg

diesel :- 42-46 MJ/kg

2. coal and petroleum are formed as a result of degradation of ancient plant life which lived millions of years ago.

These dead plant matter started to pile up, eventually forming a substance called peat. Over time, heat and pressure from geological processes transformed these materials into coal.

coal tarr , synthetic dyes , drugs, explosives are derived from coal

3. A substance which burns in air and tends to produce heat and light is known as Combustible substances.

Non-combustible substances are certain substances which are not combustible in the presence of air. Will not burn on being exposed to flame.

Explanation:

trust me

i dont need to spam