27^@C ताप पर यूरिया के 0.01 M विलयन का परासरण दाब ज्ञात कीजिए। (R= 0.0821 L atm K^-1 mol^-1) | 1...

A balloon of diameter 21 meter weight 100 kg. Calculate its pay-load, if it is filled with He at 1.0 atm and 27^(@)C . Density of air is 1.2 kg m^(-3) . (Given : R=0.082 L atm K^(-1)mol^(-1) )

What is density of SO_(2) gas at 27^(@)C and 2 atmospheric pressure ? (At. Wts. S=32, O=16, R=0.0821 L atm K^(-1)mol^(-1) )