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To be honest, I was searching "The internal energy of an isolated system is" to get an answer myself. However, in the light that energy is constant, that makes a lot of sense.
The internal energy is constant in an isolated system because external factors cannot change what is occurring in such a system. The energy is therefore constant considering equilibrium. Over time, the rate of anything will become stabilized, such as when there is a gas-liquid equilibrium and rate of condensation = rate of vaporization.
In short, it's constant because of equilibrium and the fact that outside things have no effect.
Wiki User
∙ 15y ago
Wiki User
∙ 13y agoThis is by the Principle of Conservation of Energy.
Energy cannot be created or destroyed, but can only be converted from one form to another. Therefore, the amount of energy in a body remains constant.
Wiki User
∙ 6y agoAny conservation law is related to a symmetry of nature - this is a statement of Nöther's Law. In this case, conservation of charge is related to gauge invariance.
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When is the angular momentum of a system not conserved?
The angular momentum of a system is not conserved when a net external torque acts upon the system.
A closed system in which the net external force on the system is zero is a what?
Isolated System
What does it mean when the net charge is conserved in a closed system?
It implies the law of conservation of energy. Energy can neither be created nor destroyed. It can oonly be changed from one form to another.
What is the source of an electric charge is?
Electrical charges are conserved, meaning that any net electrical charge was present since the beginning of the Universe. I would expect the net electrical charge of the Universe to be zero; it is also possible to get electrical charges by separation of charges. That is, if you have a charge of 0, you can separate it into a charge of +1 and a charge of -1; the sum of the two charges is still zero.
What is the difference between mass and charge?
Charge is of two types, mass is only of one kindThere are two types of forces (attraction and repulsion) between charges, but there is only one kind (attraction) between massesCharge is quantized, butquantization of mass is not established so farCharge has SI unitcoulomb , the SI unit of mass is kgCharge is conserved, but mass alone is not conserved (Mass + Energy is conserved)Charge cannot exist without a mass, but mass can exist without a net charge
When is the angular momentum of a system not conserved?
The angular momentum of a system is not conserved when a net external torque acts upon the system.
A closed system in which the net external force on the system is zero is a what?
Isolated System
What does it mean when the net charge is conserved in a closed system?
It implies the law of conservation of energy. Energy can neither be created nor destroyed. It can oonly be changed from one form to another.
Does an isolated system have net force acting on it?
Even if it does the net force acting on it should be zero. That's why it's called isolated.
What does it means to say that charged is conserved?
the principal that net electric charge is neither created nor destroyed but is transferable from one material to another
What is the source of an electric charge is?
Electrical charges are conserved, meaning that any net electrical charge was present since the beginning of the Universe. I would expect the net electrical charge of the Universe to be zero; it is also possible to get electrical charges by separation of charges. That is, if you have a charge of 0, you can separate it into a charge of +1 and a charge of -1; the sum of the two charges is still zero.
Is it true that the amount of heat in a closed system is constant?
No, it is net amount of energy in a close system is constant. Energy can change form from thermal to kinetic to electrical and so on. It is only the net amount of energy that is conserved in the close system.
What is the difference between mass and charge?
Charge is of two types, mass is only of one kindThere are two types of forces (attraction and repulsion) between charges, but there is only one kind (attraction) between massesCharge is quantized, butquantization of mass is not established so farCharge has SI unitcoulomb , the SI unit of mass is kgCharge is conserved, but mass alone is not conserved (Mass + Energy is conserved)Charge cannot exist without a mass, but mass can exist without a net charge
What is a particle or system that lacks a net charge?
A photon and photons exist only while moving and have zero rest mass mo,if mo were not zero,photons would have infinite mass.
When there is no external force acting on a body , which physical quantity is conserved?
Angular Momentum. The conserved quantity we are investigating is called angular momentum. The symbol for angular momentum is the letter L. Just as linear momentum is conserved when there is no net external forces, angular momentum is constant or conserved when the net torque is zero.
What is the net charge of a system with electron and neutron?
An electron has a charge of -1.6 x 10 (to the negative 19th power) C The neutron has no charge at all. Thus the net charge is that of the electron. -1,6 x 10(-19th power).
What does an isolated atom have as a net charge?
This is an oddly stated question but I would assume you are talking about elements such as neon, argon, xenon, krypton, i.e. noble gases which are monoatomic elements. They are inert gases that, under ordinary circumstances, do not react with other elements to form compounds.
