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16/09/2020 10:17 am
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A cylinder contains hydrogen gas at pressure of 249 kPa and temperature 27°C. Its density is : (R = 8.3 J mol–1 K–1)
(1) 0.2 kg/m3
(2) 0.1 kg/m3
(3) 0.02 kg/m3
(4) 0.5 kg/m3
1 Answer
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16/09/2020 10:17 am
Correct answer: (1) 0.2 kg/m3