In an experiment 4.5 kg of a fuel was completely burnt. The heat produced was measured to be 180,000 kJ. Calculate the calorific value of the fuel.
Total mass of fuel = 4.5 kg
Total heat produced = 180,000 kJ
Therefore,
Heat produce by burning 1 kg of fuel = 180,000 kJ/4.5 kg = 40,000 kJ/kg.
So, calorific value of fuel = 40,000 kJ/kg.
Abida and Ramesh were doing an experiment in which water was to be heated in a beaker. Abida kept the beaker near the wick in the yellow part of the candle flame. Ramesh kept the beaker in the outermost of the flame. Whose water will get heated in a shorter time?
Can the process of rusting be called combustion ? Discuss.
