a spherical ballon of 21 cm diameter is to be filled up with h2 at ntp from a cylinder containing gas at 20 atm at 27 c . the cylinder can hold 2.82lt of water . the number of ballons that can be filled up
100 ml o2 diffuses in 10 secs. 100 ml of gas x diffuses in time t. gas x and time t can be
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