Anonymous
Feb 15
Describe using kinetic theory of matter.what happens when a solid changes to a gas ?
Chemistry
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Feb 15
According to the kinetic theory of matter, all particles in a substance are in constant motion. In a solid, the particles are tightly packed together and vibrate in fixed positions. However, when a solid changes to a gas, it undergoes a process called sublimation.
During sublimation, the particles in the solid gain enough energy to break the intermolecular forces holding them together. As a result, they transition directly from a solid state to a gaseous state without passing through the liquid phase. This occurs when the temperature and pressure conditions are such that the vapor pressure of the solid exceeds the atmospheric pressure.
As the solid changes to a gas, the particles gain even more energy and move freely in all directions. They spread out and occupy a much larger volume compared to when they were in the solid state. The gas particles also move at higher speeds and collide with each other and the walls of the container, creating pressure.
Overall, when a solid changes to a gas, the particles break free from their fixed positions, gain energy, and move more rapidly and randomly in all directions. This process is known as sublimation and is the opposite of deposition, where a gas changes directly into a solid.
During sublimation, the particles in the solid gain enough energy to break the intermolecular forces holding them together. As a result, they transition directly from a solid state to a gaseous state without passing through the liquid phase. This occurs when the temperature and pressure conditions are such that the vapor pressure of the solid exceeds the atmospheric pressure.
As the solid changes to a gas, the particles gain even more energy and move freely in all directions. They spread out and occupy a much larger volume compared to when they were in the solid state. The gas particles also move at higher speeds and collide with each other and the walls of the container, creating pressure.
Overall, when a solid changes to a gas, the particles break free from their fixed positions, gain energy, and move more rapidly and randomly in all directions. This process is known as sublimation and is the opposite of deposition, where a gas changes directly into a solid.
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