A cylinder contains hydrogen gas at pressure of 249 kPa and temperature 27C. Its density is:...
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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) 0.02 kg/m³ (3) 0.2 kg/m³ (2) 0.5 kg/m³ (4) 0.1 kg/m³ 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) 0.02 kg/m³ (3) 0.2 kg/m³ (2) 0.5 kg/m³ (4) 0.1 kg/m³
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