Advertisements
Advertisements
प्रश्न
Define the term calorie. How is it related to joule (the S.I. unit of heat)?
लघु उत्तर
Advertisements
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
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Name the three modes of transfer of heat.
What will absorb heat?
Iron griddle (tava)
Name the SI unit of heat.
With the help of a diagram, show that water is a bad conductor of heat.
Complete the following sentence:
CGS units of heat is _________
When an object is heated, the molecules that make up the object
______ is a form of energy.
In the arrangements A and B shown in the following figure, pins P and Q are fixed to a metal loop and an iron rod with the help of wax. In which case are both the pins likely to fall at different times? Explain.
Which of the following is true?
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 |
