Can Matter Change Its State?

Author:Manipur Board
9th Manipur Board
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Important Questions on Can Matter Change Its State?

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Science for Class 9>Nature of Matter>Can Matter Change Its State?> Q 1

What are the conditions necessary to liquefy gases?

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Science for Class 9>Nature of Matter>Can Matter Change Its State?> Q 2

Define.

The boiling point of a substance

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Science for Class 9>Nature of Matter>Can Matter Change Its State?> Q 3

Define. 

Melting point

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Science for Class 9>Nature of Matter>Can Matter Change Its State?> Q 4

Define the term "latent heat of vaporization" of a liquid.

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Science for Class 9>Nature of Matter>Can Matter Change Its State?> Q 5

What is meant by the latent heat of fusion of a solid? How much is the latent heat of fusion of ice?

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Science for Class 9>Nature of Matter>Can Matter Change Its State?> Q 6

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

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Science for Class 9>Nature of Matter>Can Matter Change Its State?> Q 7

Why is the temperature remains the same when ice is melted even though we supply heat continuously?

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Science for Class 9>Nature of Matter>Can Matter Change Its State?> Q 8

Steam and boiling water has the same temperature. But steam cause more severe burns than boiling water. Why?

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Science for Class 9>Nature of Matter>Can Matter Change Its State?> Q 9

Why is heat energy is needed to melt a solid?