Neco 2020 Physics Question 22
Practice objective / multiple choice question 22 from the 2020 Neco Physics examination.
A frictionless piston of area \(A = 0.005\,\text{m}^2\) supports a mass of \(50\,\text{kg}\). Atmospheric pressure is \(1.0\times10^{5}\,\text{Pa}\). The gas trapped beneath the piston initially has pressure \(1.2\times10^{5}\,\text{Pa}\) and temperature \(300\,\text{K}\). The piston is slowly lowered until the gas volume is halved, the temperature remaining constant. Determine the additional upward force exerted by the gas after compression, the total upward pressure force (gas plus atmosphere), and the net upward force on the piston. Give the net upward force in newtons.
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About This Question
This is Neco 2020 Physics Question 22. It is one of the objective questions from the 2020 Neco Physics examination.
Difficulty level: Medium .
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