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If work is don adiabatically on a system will the internal energy increase or decrease?
If work is done adiabatically on a system, the internal energy will increase. This is because adiabatic processes do not involve the exchange of heat with the surroundings, so any work done on the system will directly contribute to an increase in its internal energy.
What happens to the internal energy of a system when work is done on it?
If the internal energy of the system increases the temperature will increase.
What is meant by conservation of energy in a closed system?
Closed system means that no energy enters or leaves the system; conservation means that in this case, the total amount of energy will not increase, nor decrease.
What does the law of energy states?
That the total energy in a closed system will neither increase nor decrease.
When mechanical work is done on a system there is an increase in what?
both temperature and internal energy
Is the heat supplied to a system always equal to the increase in its internal energywhat thermodynamic variable is defined by zeroth law and first law of thermodynamic?
The heat supplied to a system can increase its internal energy if no work is extracted from the system. If any work is done by the system, then the increase in internal energy will be less than the heat supplied to the system. The thermodynamic variable defined by the zeroeth law is Temperature.
The total amount of usable energy tends to increase in a closed system?
No. It tends to decrease.
What is law of conservations of energy?
It means that the total amount of energy in a closed system will neither increase nor decrease.
What is stated in law of conservation of energy?
The total amount of energy in a closed system will neither increase nor decrease.
Does internal energy of system depends upon volume?
Internal energy is an extensive state function. That means it depends on how much of a substance you have but if you fix the composition, pressure, temperature, volume, and (in the case of a system at a phase equlibrium point, like water at the freezing point) the phase of a system, the specific internal energy will be constant. If you take a closed system and change the volume of it, you will be doing work (or allowing the system to do work) and the internal energy can change - so - yes - internal energy of a system depends upon volume. Also, if you fix the composition, temperature, pressure, and phase of a homogeneous mass but change the volume, you will increase the amount of mass you included in the system, thus changing the total internal energy (because it is, after all, an extensive function).
By what means can the internal energy of a system increase?
there are a number of ways: you could put that system into direct thermal contact with another system of a higher temperature, which would result in a conduction of heat energy from the higher energy system to the lower one. Or you could fire radiation at the system which the system absorbs and thus its internal energy is raised. I think you might increase the energy if you decrease the volume under pressure, because the temperature will increase and you will have done work on the system, hence increasing it internal energy. Like wise, if you spray a deodorant can, it comes out cold, because the compressed gas has done work on the atmosphere, and used up internal energy, hence it feels cold.
Ones internal thermal energy?
Internal energy is defined as the sum of the randomly distributed potential energies plus the sum of the randomly distributed kinetic energies within a closed system.
