Advertisements
Advertisements
प्रश्न
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.
उत्तर
The amount of heat that 1 kg of fuel produces is its calorific value.
Now,
The heat produced by 4.5 kg of fuel = 180000 kJ
Therefore, heat produced by 1 kg of fuel = `180000/4.5 xx 1` kJ/kg
= 40,000 kJ/kg
Hence, the calorific value of the fuel is 40,000 kJ/kg.
APPEARS IN
संबंधित प्रश्न
In the presence of water, the ignition temperature of paper is ______.
How many types of combustion are there?
Which one of the following has the highest calorific value?
Boojho wants to separate the following materials as combustible and non-combustible. Can you help him?
| Charcoal | chalk | stone | iron rod | copper coin | straw | cardboard | glass | paper | candle | wood |
State whether the following statement is True/False.
Magnesium is a non-combustible metal.
Write True/False against the following statement and also correct the false statement.
Alcohol, CNG and LPG are inflammable substances.
The calorific values of petrol and CNG are 45000 kJ/kg and 50, 000 kJ/kg respectively. If you have vehicle which can run on petrol as well as CNG, which fuel will you prefer and why?
Forest fire produces a lot of air pollution. Write in brief about the reasons of forest fires.
All combustion reactions are ______.
Write the characteristics of good fuel.
