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The following physics responses are provided by a student and, as such, should be considered in that context. While every effort is made for accuracy, absolute correctness cannot be fully guaranteed.
Question
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12
I
Question
A 4-mol ideal gas system undergoes an adiabatic process where it expands and does 20 J of work on its environment. What is its change in internal energy?
Answer
-20 J

Notes
User Added Note e d
KillGorack 2023-07-09 19:45:40 The first law of thermodynamics states that the change in internal energy of a system (ΔU) is equal to the heat added to the system (Q) minus the work done by the system (W): ΔU = Q - W In an adiabatic process, no heat enters or leaves the system, so Q is 0. If the system is doing work on its surroundings, the work done by the system is negative. So in this case, the work done by the system is -20 J (since the system is doing work, not having work done on it).
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