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प्रश्न
Do all substances expand on heating? Give examples.
उत्तर
Not all substances expand on heating. Some examples of substances which do not expand on heating are plastics, polythene and rubber.
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संबंधित प्रश्न
State the temperature of ice point on the Celsius scale.
What causes a change in the temperature of a body?
1 joule = 4.2 calorie
Is this relation correct?
Write the SI unit of coefficient of cubical expansion.
A spiral cut from a thick chart paper is pivoted at 0 and is held slightly above a burning candle You will notice that the spiral starts moving. Explain.
Match the following
| 1. | Heat | 0o C |
| 2. | Temperature | 100o C |
| 3. | Thermal Equilibrium | kelvin |
| 4. | Ice cube | No heat flow |
| 5. | Boiling water | joule |
What is temperature?
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.
Distinguish between linear, arial, and superficial expansion.
If you keep ice at 0° C and water at 0° C in either of your hands, in which hand you will feel more chillness? Why?
