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प्रश्न
Draw a labelled diagram of the experimental set-up to study the latent heat of fusion of ice.
उत्तर
The diagram below shows the experiment set up to study the latent heat of fusion of ice.
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संबंधित प्रश्न
The Kelvin temperature is 270 K. What is the corresponding Celsius scale temperature ?
Write the relation between Kelvin scale and Celsius scale of temperature.
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Draw a labelled diagram of the experimental set-up to demonstrate the sublimation of ammonium chloride.
There are four substances W, X, Y and Z. The substance W is a dark violet solid having diatomic molecules. A solution of W in alcohol is used as a common antiseptic C. The substance X is a white solid which is usually recovered from sea water on a large scale. The substance Y is a white solid which is insoluble in water and used in the form of small balls for the safe storage of woollen clothes. The substance Z is a yet another white solid which is used in making commonly used dry cells.
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- Which substance is organic in nature ?
- What is the name of substance C ?
- Which substance belongs to the halogen family ?
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There is no difference between evaporation and boiling
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The state of matter which has ___________ least density & no free surfaces.
With reference to the liquid state of matter – answer the following
On heating, the liquid, do the particles gain or lose energy.
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.
- Stretch and tie the rubber sheet on the mouth of the jar.
- Your model is ready. Now run your fingers up and down the string by first tugging at it slowly and then rapidly.
