Advertisements
Advertisements
प्रश्न
What is the difference between heat and temperature? What are their units?
Advertisements
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
At 0°C and 760 mm Hg pressure, a gas occupies a volume of 10Q cm3. The Kelvin temperature (Absolute temperature) of the gas is increased by one-fifth while the pressure is increased one and a half times. Calculate the final volume of the gas. [80 cc.]
Is heat a form of energy?
Which is more, a calorie or a joule?
Write down the SI unit of latent heat.
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.
What is the principle of the thermometer?
Assertion (A): 0 °C = 273.16 K. For our convenience we take it as 273 K after rounding off the decimal.
Reason (R): To convert a temperature on the Celsius scale we have to add 273 to the given temperature.
Temperature is a measure of the average kinetic energy of molecules.
