Q1. What are the three essential requirements for combustion? Q2. Which part of a flame does a goldsmith blow for melting gold and silver? Q3. Why is sodium kept immersed in kerosene? Q4. What is rapid combustion? Q5. Give two examples each of solid fuels, liquid fuels and gaseous fuels. Q6. 60 kg of fuel was completely burnt for an experiment. The amount of heat energy was found to be 1,80,000 kJ. Calculate the calorific value of the fuel. Q7. Mention any three characteristics of a good fuel.
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Explanation:
- Three things are required in proper combination before ignition and combustion can take place---Heat, Oxygen and Fuel. There must be Fuel to burn. There must be Air to supply oxygen. There must be Heat (ignition temperature) to start and continue the combustion process.
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Answer:
Q 1
Explanation:
Air,fuel and heat it is essential requirment for combustion
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