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States of Matter in One Shot (NCERT) Video Lecture - Chemistry Class 11 - NEET

195 videos|336 docs|190 tests

FAQs on States of Matter in One Shot (NCERT) Video Lecture - Chemistry Class 11 - NEET

1. What are the three states of matter?
Ans. The three states of matter are solid, liquid, and gas. In solids, particles are closely packed and have a fixed shape and volume. Liquids have particles that are loosely packed and can change shape but have a fixed volume. Gases have particles that are widely spaced and can change both shape and volume.
2. What is the process of changing a solid into a liquid called?
Ans. The process of changing a solid into a liquid is called melting. This occurs when heat is applied to a solid, causing its particles to gain enough energy to break their rigid structure and move freely, resulting in the formation of a liquid.
3. Can matter exist in a fourth state?
Ans. Yes, matter can exist in a fourth state known as plasma. Plasma is a highly ionized gas in which the particles are in an energized state and are capable of conducting electricity. Examples of plasma include the sun, lightning, and fluorescent lights.
4. What is the process of changing a liquid into a gas called?
Ans. The process of changing a liquid into a gas is called vaporization. This can occur through two processes: evaporation and boiling. Evaporation takes place at the surface of a liquid, where particles gain enough energy to escape into the surrounding space. Boiling, on the other hand, occurs throughout the liquid when the temperature reaches its boiling point, causing rapid vaporization.
5. How does the arrangement of particles differ in solids, liquids, and gases?
Ans. In solids, particles are closely packed and arranged in a regular pattern, resulting in a fixed shape and volume. In liquids, particles are loosely packed and have more freedom to move, allowing them to take the shape of the container they are in while maintaining a fixed volume. In gases, particles are widely spaced and move randomly and rapidly, filling the entire space available to them.
195 videos|336 docs|190 tests
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