City Guilds Model Questions Vol1 2021 Engineering Question 34
Practice objective / multiple choice question 34 from the 2021 City Guilds Model Questions Vol1 Engineering examination.
A gas cylinder contains \(2.5\ \text{m}^3\) of air at \(25^{\circ}\text{C}\) and \(1.2\ \text{atm}\). Using the ideal‑gas constant \(R = 0.082057\ \text{L·atm·K}^{-1}\text{mol}^{-1}\) and the molar mass of air \(M = 28.97\ \text{g mol}^{-1}\), calculate the mass of the air in the cylinder (express your answer in kilograms, to three significant figures).
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About This Question
This is City Guilds Model Questions Vol1 2021 Engineering Question 34. It is one of the objective questions from the 2021 City Guilds Model Questions Vol1 Engineering examination.
Difficulty level: Hard .
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