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प्रश्न
What is the difference between heat and temperature? What are their units?
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उत्तर
| Heat | Temperature |
|
It is a form of energy which causes in us the sensation of hotness or coldness. |
It is a measure of the degree of hotness or coldness of an object. |
|
The total kinetic energy of the atom is measured in heat. |
The average kinetic energy of the atom is measured in temperature. |
| It is measured in joules (J). | It is measure in Kelvin (K), Celsius (°C) and Fahrenheit (°F) |
संबंधित प्रश्न
Fill in the blank:
°C is the unit of ......................
Who is telling the truth?
Heat flows from an object at higher temperature to an object at lower temperature.
Distinguish between heat and temperature.
State three factors affecting evaporation.
One liter of mercury at 100C is heated to 300C. Find the increase in the volume of mercury. The coefficient of cubical expansion of mercury is 1.8 X 10-4 0C-1.
Explain the following:
In a solid, heat is not transferred by the process of convection.
Explain the following:
Conduction is not possible in vacuum.
Explain the following:
It is cool in the shade, when it is hot outside.
The dimensions of a substance are increased if the temperature of the substance is decreased.
When we cool the object the temperature of the object will be increased.
