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Molecules in an ice cube have lower kinetic energy than molecules in a radiator.
Molecules in an ice cube move more slowly than molecules in a radiator. They collide with less force than molecules in a radiator.
When in direct contact, the fast-moving molecules in the radiator collide with the slow-moving molecules in the ice cube.
Kinetic energy is transferred from the molecules in the radiator to the molecules in the ice cube, causing a slowdown of the radiator molecules and an acceleration of the ice molecules.
Molecules in an ice cube will move slower than molecules in a radiator because of less temperature.
The energy obtained by an object, particle or molecule as a result of its motion is called kinetic energy. Kinetic energy is directly proportional to temperature. This means that in a condition of high temperature, kinetic energy will also be high and in a condition of lower temperature, kinetic energy will also be low.
Following is the relation of kinetic energy with temperature
K = 3/2 k T
Where K stands for kinetic energy and T stands for temperature.
Therefore, in a radiator, the temperature will be high as the purpose of the radiator is to provide heat. Hence, the average kinetic energy of the particles in a radiator will also be high. This will result in the motion of particles in the radiator at an increased speed.
On the other hand, in an ice cube. The molecules of water will be at a much lower temperature because they are frozen. At this low temperature, the kinetic energy of these molecules of water will be minimal in an ice cube. This will result in the motion of particles in an ice cube at a lower speed.
Therefore, the motion of particles in a radiator will be fast and the motion of particles in an ice cube will be slow.
Read more about kinetic energy, here
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