Class 9 Exam > Class 9 Videos > Chemistry for Class 9 > Fun Video: States of Matter
Fun Video: States of Matter Video Lecture | Chemistry for Class 9
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FAQs on Fun Video: States of Matter Video Lecture - Chemistry for Class 9
| 1. What are the three states of matter? |  |
Ans. The three states of matter are solid, liquid, and gas.
| 2. How are the particles arranged in a solid state of matter? | |
Ans. In a solid state of matter, the particles are tightly packed and arranged in a fixed pattern.
| 3. What happens during the process of melting? | |
Ans. During the process of melting, a solid changes into a liquid as it absorbs heat energy and the particles gain enough energy to break free from their fixed positions.
| 4. What is sublimation? | |
Ans. Sublimation is the process by which a solid turns directly into a gas without passing through the liquid state.
| 5. How does temperature affect the state of matter? | |
Ans. Temperature affects the state of matter by changing the amount of energy the particles have. At low temperatures, particles are closer together and move more slowly, resulting in a solid. As temperature increases, the particles move faster and can slide past each other, resulting in a liquid. At even higher temperatures, the particles move very quickly and spread apart, resulting in a gas.
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Dec 25, 2024 Last updated |
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