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单词 elastic collision
释义
elastic collision

Physics
  • A collision in which the total kinetic energy of the colliding bodies after collision is equal to their total kinetic energy before collision. Elastic collisions occur only if there is no conversion of kinetic energy into other forms, as in the collision of atoms. In the case of macroscopic bodies this will not be the case as some of the energy will become heat. In a collision between polyatomic molecules, some kinetic energy may be converted into vibrational and rotational energy of the molecules, but otherwise molecular collisions appear to be elastic.


Mathematics
  • A collision in which there is no loss of kinetic energy.


Chemistry
  • A collision in which the total kinetic energy of the colliding bodies after collision is equal to their total kinetic energy before collision. Elastic collisions occur only if there is no conversion of kinetic energy into other forms, as in the collision of atoms. In the case of macroscopic bodies this will not be the case as some of the energy will become heat. In a collision between polyatomic molecules, some kinetic energy may be converted into vibrational and rotational energy of the molecules.


Chemical Engineering
  • An idealized assumption used in the kinetic theory of gases in which the kinetic energy of atoms before collision is the same as the kinetic energy after collision. Perfect elastic collisions occur unless the kinetic energy is converted into another form of energy. For molecules other than monatomic molecules, the kinetic energy is converted into vibrational energy and rotational energy.


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