Gce Model Questions Vol1 2023 Physics Question 20
Practice objective / multiple choice question 20 from the 2023 Gce Model Questions Vol1 Physics examination.
A sealed piston‑cylinder contains \(0.5\) mol of a monatomic ideal gas at \(300\) K and \(100\) kPa. The gas first expands isothermally until its volume doubles, and then it is compressed adiabatically back to its original volume.\n\n(a) Calculate the net work done on the gas over the complete cycle (in joules, to the nearest joule).\n(b) Determine the efficiency of the cycle, defined as \(\eta = \dfrac{|W_{\text{net}}|}{Q_{\text{in}}}\), where \(Q_{\text{in}}\) is the heat absorbed during the isothermal expansion. Express \(\eta\) as a percentage to the nearest whole percent.
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About This Question
This is Gce Model Questions Vol1 2023 Physics Question 20. It is one of the objective questions from the 2023 Gce Model Questions Vol1 Physics examination.
Difficulty level: Medium .
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