(ii
(iv) (1)
A cylinder contains hydrogen gas at pressure of
249 kPa and temperature 27°C.
Its density is : (R=8.3J mol-'K-1)
(1) 0.5 kg/m
0.2 kg/m
0.1 kg/m
0.02 km
M 분
Sa
Pne
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Answer:
answer is b 0.2kg/m³
Explanation:
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