Advertisements
Advertisements
प्रश्न
If 4.5kg of fuel is completely burnt and amount of heat produced stands measured at 1, 80,000 KJ what is the calorific value.
Advertisements
उत्तर
Calorific value = `"Heat Produced"/"Amount of Fuel"="1,80,000"/"4.5"= 40000`
∴ Calorific value = 40,000 kj/kg
APPEARS IN
संबंधित प्रश्न
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 part of the flame. Whose water will get heated in a shorter time?
Which is the hottest part in the flame of candle ______.
Inner zone of flame : :______, outer zone of flame : :______
Name the unit in which the calorific value of a fuel is expressed?
Make labeled diagram of a candle flame.
Magnesium ribbon on burning in air produces
The ______ temperature at which a substance catches fire is called its ______ temperature.
The substances which vaporise during ______ give flame.
Anu wants to boil water quickly in a test tube. On observing the different zones of the flame, she is not able to decide which zone of the flame will be best for boiling water quickly. Help her in this activity.
Match the following:
| 1. | White flame | a. | Table salt |
| 2. | Indigo flame | b. | Bleaching powder |
| 3. | Blue flame | c. | Potassium chloride |
| 4. | Orange flame | d. | Epsom salt |
