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Heat is an exchange of internal energy from one system to another due to?
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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.
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.
A system absorbs 640J heat and does work of 260J the change in internal energy of the system will be?
the system has been given internal energy of 640j and the work system does on surroundings is 260j. therefore by first law of thermodynamics the internal energy of system increases by (640-260=380)j.
What is the relationship between heat added to a system and the internal energy and external work done by the system-?
When heat is added to or is absorbed by a system, its internal energy increases. The amount of external work a system can do essentially refers to the amount of energy it can transfer to something else. So when internal energy increases, so does the external work done by the system.
In science terms what is a closed sysytem?
A closed system is a system that can exchange energy (heat and work)with its surroundings, but can not exchange matter with its surrounding.A greenhouse to some extent can be thought of as a closed system exchanging heat with its surroundings.In general, a system is the part of the universe under consideration.Systems can be isolated, closed, or opened.An isolated system can not exchange energy, and can not exchange matter with its surroundings.In contrast, an opened system can exchange both energy and matter with its surroundings.
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.
Does a closed system exchange energy with the outside?
Yes it can... An open system can exchange both energy and matter with its surroundings, where as a closed system CAN exchange energy, but CANNOT exchange matter with its surroundings. Also, an isolated system cannot exchange energy nor matter with its surroundings.
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.
How does an open system contrast with a closed system?
An open system allows for the exchange of matter and energy between the system and outside of the system. A closed system only allows the exchange of energy; not matter.
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.
A system absorbs 640J heat and does work of 260J the change in internal energy of the system will be?
the system has been given internal energy of 640j and the work system does on surroundings is 260j. therefore by first law of thermodynamics the internal energy of system increases by (640-260=380)j.
The exchange of gases for internal cellular respiration is accomplished by?
The circulatory system
What is the relationship between heat added to a system and the internal energy and external work done by the system-?
When heat is added to or is absorbed by a system, its internal energy increases. The amount of external work a system can do essentially refers to the amount of energy it can transfer to something else. So when internal energy increases, so does the external work done by the system.
When reactants change to products do the chemicals lose or gain energy?
The formation of bonds causes an energy release, while the breaking of bonds causes an absorption of energy. In a combustion reaction c+o2 --> co2, the reactants have a higher internal energy than the products resulting in a negative internal energy because energy is flowing out of the system to the surroundings. However in co2 ---> c+o2, the reactants have a lower internal energy than the products, so the internal energy of the system is positive as energy is flowing into the system from the surroundings.
What is a closed systems?
A system that cannot exchange matter with its surroundings A system that allows energy to move in and out but not mass ~ Apex
In science terms what is a closed sysytem?
A closed system is a system that can exchange energy (heat and work)with its surroundings, but can not exchange matter with its surrounding.A greenhouse to some extent can be thought of as a closed system exchanging heat with its surroundings.In general, a system is the part of the universe under consideration.Systems can be isolated, closed, or opened.An isolated system can not exchange energy, and can not exchange matter with its surroundings.In contrast, an opened system can exchange both energy and matter with its surroundings.
What is a system that cannot exchange matter or energy with its surrounding?
a closed system
