The first law of thermodynamics can be stated as _.
Correct answer: A. Q = ΔU +W
- A. Q = ΔU +W
- B. Q + ΔU = W
- C. Q = ΔU - W
- D. Q = ΔU x W
Explanation
The first law of thermodynamics can be stated as: Q = ΔU + Wwhere Q represents the heat added to the system, ΔU represents the change in internal energy of the system, and W represents the work done by the system.
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About First Law of Thermodynamics
The first law relates heat supplied, work done and the change in internal energy through energy conservation. Problems use sign conventions and apply the law to isothermal, adiabatic, isobaric and isochoric processes. Internal energy is a state function, while heat and work depend on the path followed.
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