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1. What is the kinetic theory of matter?
Ans. The kinetic theory of matter states that all particles of matter are in constant motion. It explains how the temperature of a substance is related to the average kinetic energy of its particles.
2. How does the kinetic theory explain the behavior of gases?
Ans. According to the kinetic theory, gases consist of particles that are in constant random motion. The theory explains concepts such as pressure, volume, and temperature in terms of the collisions between gas particles and the walls of their container.
3. How does the kinetic theory explain the different states of matter?
Ans. The kinetic theory explains the different states of matter based on the arrangement and motion of particles. In solids, particles are closely packed and vibrate in fixed positions. In liquids, particles are still close together but can move around each other. In gases, particles are widely spaced and move freely.
4. What is the relationship between temperature and kinetic energy according to the kinetic theory?
Ans. According to the kinetic theory, temperature is a measure of the average kinetic energy of particles in a substance. As the temperature increases, the average kinetic energy of particles also increases.
5. How does the kinetic theory explain the expansion and contraction of substances with temperature changes?
Ans. The kinetic theory explains that when a substance is heated, its particles gain kinetic energy and move faster. This increased motion causes the substance to expand. Conversely, when a substance is cooled, its particles lose kinetic energy and move slower, leading to contraction.
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