For an adiabatic contraction:
Correct answer: D. All of these
- A. T increases
- B. Mechanical energy comes into the system
- C. ∆Q= Zero
- D. All of these
Explanation
The correct answer is D because during an adiabatic contraction:A) The temperature (T) of the system increases.B) Mechanical energy comes into the system as work is done on the gas during contraction.C) There is no heat exchange (Q = 0) during the process.
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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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