Name the unit in which the calorific value of a fuel is expressed.
The calorific value of fuel is expressed in Kilojoules per kg (kJ/kg).
Explain how CO2 is able to control fires.
Make a labelled diagram of candle flame.
It is difficult to burn a heap of green leaves but dry leaves catch fire easily. Explain.
Which zone of a flame does a goldsmith use for melting gold and silver and why ?
