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प्रश्न
Explain why, there is no rise in temperature of a substance when it undergoes a change of state though heat is supplied continuously.
उत्तर
There is no rise in the temperature of a substance when it undergoes a change of state though heat is being supplied because heat is used to overcome inter-molecular force of attraction between the particles of the substance during a change in physical state.
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संबंधित प्रश्न
Convert the following temperature to Celsius scale:
300 K
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What will happen if....? And why?
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Why does this happen?
Kerosene left open in a dish disappears.
Prepare a model to demonstrate movement of particles in solids, liquids and gases.
For making this model you will need
- A transparent jar
- A big rubber balloon or piece of stretchable rubber sheet
- A string
- Few chickpeas or black gram or dry green peas.
How to make?
- Put the seeds in the jar.
- Sew the string to the centre of the rubber sheet and put some tape to keep it tied securely.
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- Your model is ready. Now run your fingers up and down the string by first tugging at it slowly and then rapidly.
