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When does the internal energy increases?

The internal energy of a system increases when energy is added to the system through heat transfer or work done on the system. This can result in an increase in temperature, change in phase, or other forms of internal energy change.


What happens to internal energy when mechanical work is done?

When mechanical work is done, the internal energy of a system can change. If work is done on the system, the internal energy increases. Conversely, if work is done by the system, the internal energy decreases. This change in internal energy is governed by the first law of thermodynamics.


What is the change in the internal energy of a system that does 100 joules?

The change in internal energy of a system that does 100 joules of work depends on the heat exchange as well. In general, the change in internal energy is equal to the amount of heat added to the system minus the work done by the system.


What is the change in internal energy if 20 joules of heat is released from a system and the system does 50 joules of work on the surroundings?

-70 Joules


What is the relationship between the work done in an adiabatic process and the change in internal energy of a system?

In an adiabatic process, the work done is equal to the change in internal energy of a system.


What is the change in the internal energy of a system that absorbs 2.500J of heat and that does 7.655J of work on the surroundings is?

The change in internal energy is the sum of heat added to the system and work done by the system on the surroundings. So, the change in internal energy is 2.500J (heat absorbed) - 7.655J (work done), resulting in a change of -5.155J.


What is the relationship between the internal thermal energy of a system and its overall temperature change?

The internal thermal energy of a system is directly related to its overall temperature change. When the internal thermal energy of a system increases, the temperature of the system also increases. Conversely, when the internal thermal energy decreases, the temperature of the system decreases. This relationship is governed by the principle of conservation of energy, where energy cannot be created or destroyed, only transferred or converted.


What is the change in internal energy when a system is heated with 35 J of energy while it does 15 J of work?

The change in internal energy is equal to the energy added minus the work done by the system. In this case, the change in internal energy is 35 J - 15 J = 20 J.


What is the relationship between work, heat transfer, and change in internal energy in a thermodynamic system?

In a thermodynamic system, work, heat transfer, and change in internal energy are related through the first law of thermodynamics. This law states that the change in internal energy of a system is equal to the heat added to the system minus the work done by the system. This relationship helps to understand how energy is transferred and transformed within a system.


What is the relationship between reversible adiabatic expansion work and the change in internal energy of a system?

During reversible adiabatic expansion, the work done by the system is equal to the change in internal energy.


What is the relationship between the work done during an isothermal expansion and the change in internal energy of a system?

During an isothermal expansion, the work done is equal to the change in internal energy of the system.


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.