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Does the kinetic energy of a system change during a phase change?
Wiki User
∙ 12y ago
This seems like a question from an electrical course, and is probably best answered by your course materials.
It's your test question, not ours, and there won't always be someone to ask the answer of. Earn your diploma.
Haha, whoever wrote that is Just mean.
He or she wrote it here because they didnt understand it and wanted to knowledge of our community we call earth (sharing is caring).
Anyhoo during a phase change (lets use the example of ice to water) ice to water is the phase change. When heat is added the particles move, but the energy isn't used for it for movement, instead its for breaking the bonds. And kinetic energy is energy from movement. Thus, nope its potential energy that is being changed.
Gl to all those kids/teens/adults that search this question! I was too pissed when i didnt come up with an answer for this question, and its mean ppl like the one above me who make it worst for us cram-last-minute people =)
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoWhen freezing, bonds are formed between particles, releasing energy, so the potential energy decreases. When melting, energy is used to break these bonds, so potential energy increases.
XD
Wiki User
∙ 13y agoenergy is either absorbed or released during a phase change
Wiki User
∙ 14y agoTotal energy does not change (in a closed system). If chemical energy increases heat energy decreases to compensate.
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In a closed system energy is equal to potential energy plus kinetic energy?
Mechanical energy is equal to potential energy plus kinetic energy in a closed system. The total mechanical energy is conserved.
In a closed system energy is equal to potential energy plus kinetic energy.?
Mechanical energy is equal to potential energy plus kinetic energy in a closed system. The total mechanical energy is conserved.
What effect does liquid nitrogen have on molecular kinetic energy?
Temperature is a measure of kinetic energy. Because liquid nitrogen is very cold, a system's kinetic energy will be collisionally transferred to the added liquid nitrogen. Thus, in general, adding liquid nitrogen will decrease a system's kinetic energy. (There are some exceptions where the system has less kinetic energy than the liquid nitrogen, such as liquid helium.)
What energy is the total kinetic and potential energy in a system?
Mechanical energy
If you Add up the total kinetic energy and potential energy what does that give you?
The sum of potential and kinetic energy gives you the Mechanical Energy of the system
If friction can be ignored what system doesn't change?
Kinetic Energy
What is the principal of conversion of energy?
The main principle is that energy could not be created from nothing and never vanish.In physics, the law of conservation of energy states that the total energy of an isolated system cannot change-it is said to be conserved over time.Energy can be neither created nor destroyed, but can change form; for example chemical energy to change to kinetic energy, potential energy to change to kinetic energy, kinetic energy to change to electrical energy, ... etc.
What does thermal energy refer to?
The kinetic energy within a system
How does the the energy of a system change during a phase change?
energy is either absorbed or released during a phase change
How does the energy of a system change during phase change?
energy is either absorbed or released during a phase change
What energy is the sum of potential energy and kinetic energy in a system of objects?
The sum of the potential and kinetic energy of large-scale objects in a system is the Hamiltonian.
How does energy change as objects move?
Moving objects do not change, in general, the energy of the system. It depends, of course, of the different energies which are related with the problem. Suppose that we only have kinetic energy. If the velocity of an object is constant, the total energy is then constant too. Only if there is a change in the velocity we have a change in the energy. Potential energies depends on the exact form of them. For elastic forces, for example, there is a change of the total energy with the position across the expression U = kx2. But there are other ones which do not depend on the position, so they do not change total energy. When objects are at rest their kinetic energy is zero while their potential energy is maximum.As they start moving their potential energy is converted into kinetic energy at every moment during motion. Just before coming to rest again their kinetic energy is maximum and potential energy is zero.This process continues like this.
What is the thermal energy of system?
The total kinetic energy within a system
What is Thermal energy of a system?
The total kinetic energy within a system
What in a closed system energy is equal to potential energy plus kinetic energy?
Mechanical energy is equal to potential energy plus kinetic energy in a closed system. The total mechanical energy is conserved.
In a closed system what energy is equal to potential energy plus kinetic energy.?
Mechanical energy is equal to potential energy plus kinetic energy in a closed system. The total mechanical energy is conserved.
In a closed system what energy is equal to potential energy plus kinetic energy?
Mechanical energy is equal to potential energy plus kinetic energy in a closed system. The total mechanical energy is conserved.
