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Matter In Our Surroundings

Question

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For any substance, why does the temperature remain constant during the change of state ?

Solution

During the change of state temperature remains constant because the heat given to the matter is used up in changing the state of matter. This is called latent heat.

Some More Questions From Matter In Our Surroundings Chapter

For any substance, why does the temperature remain constant during the change of state ?

Suggest a method to liquify atmospheric gases.

Convert the following temperatures to Kelvin scale.

35°C

Give reason for the following observations.

Naphthalene balls disappear with time without leaving any solid.

Give reason for the following observations.

We can get the smell of perfume sitting several metres away.

What is the physical state of water at

a) 25°C
b)0⁰C
c)100⁰C

What is the physical state of water at
0°C

What is the physical state of water at
100°C

Give two reasons to justify
Water at room temperature is a liquid.

Give two reasons to justify
An iron almirah is a solid at room temperature.

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