Answer :
Answer:
B. The system is losing 115 J, while the surroundings are gaining 115 J.
Explanation:
Internal energy is denoted by the symbol ΔE. Internal energy as the name suggests is the total energy which the body contains. It is defined as the sum of the total of kinetic energies and the potential energies of all the inside particles of the body.
For a system, internal energy can be negative as well as positive. When the system loses internal energy,it is negative and when the system absorbs internal energy it is positive.
In the context since it is given that ΔEsys = - 115 J. Therefore the system is losing internal energy of 115 J to the surrounding. The surrounding is gaining 115 J of energy because the system is surrounded by the surrounding and the internal energy is transferred to the surroundings.
Final answer:
When a system loses 115 joules of energy (ΔEsys = -115 J), it means that the surroundings are gaining the same amount of energy. This is due to the first law of thermodynamics - energy is neither created nor destroyed, only transferred. Option B is correct:
Explanation:
The correct answer to your question is option B. ΔEsys represents the change in the internal energy of a system. If ΔEsys = -115 J, this means that the system has lost 115 joules of energy. Energy is conserved in an isolated system, therefore if the system has lost 115 joules of energy, the surroundings must have gained the same amount, hence 115 joules, making option B the valid response.
It's an aspect of the first law of thermodynamics, which states that energy cannot be created or destroyed, only transferred or transformed.
The correct answer to your question is option B.
Learn more about First law of thermodynamics here:
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