1.

A gas cylinder is filled with helium at 2000 mm. Due to leakage, thepressure dropped to 1500 torr in 40 min. When thesame cylinder is filled with another gas at the same pressure, the pressure dropped from 2000 mmto 1500 mm in 200 min. What is themolecular weight of thegas?

Answer»

SOLUTION :(i) relation between DROP in pressure and rate ofdiffusion
(ii) relation between the rate of DIFFUSION andmolecular WEIGHT of gases
(iii) 100


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