The work done on ideal gas during the cycle is:
Correct answer: A. 1PV
- A. 1PV
- B. 2PV
- C. PV/2
- D. 0
Explanation
The total work done is given by the area under the graph which in this case is a parallelogram. So, Change in volume= 2V - V = V Change in Pressure = 2P - P= P Hence, Work done = Pressure x Volume = 1PV
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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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