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प्रश्न
Define the term calorie. How is it related to joule (the S.I. unit of heat)?
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उत्तर
One calorie of heat is the heat energy required to raise the temperature of 1 g of water from 14.5°C to 15.5°C.
1 calorie = 4.186 J
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संबंधित प्रश्न
Fill in the blank
Heat is a form of _______.
Select the correct alternative
A thermometer uses
Name the three modes of transfer of heat.
If objects of equal masses are given equal heat, their final temperature will be different. This is due to difference in their ______.
What will absorb heat?
Steel spoon
What will absorb heat?
Wooden spoon
When an object is heated, the molecules that make up the object
Which of the following substances will absorb more heat energy?
When an electric current is passing through the conductor ______ energy is produced.
Match the following:
| Column A | Column B | ||
| 1. | Heat | a. | Heat gained or lost in the change of state without any change in temperature |
| 2. | m × L. | b. | Heat gained or lost when there is no change of state |
| 3. | Temperature | c. | Form of energy |
| 4. | m × s × t | d. | SI unit of specific latent heat |
| 5. | J/Kg | e. | degree of hotness or coldness |
