A balloon of diameter 20 metre weighs 100 kg

CHEMISTRY · Subjective · AP · Chemistry · Properties of Substances and Mixtures · Properties of Substances and Mixtures

Problem

A balloon of diameter 20 metre weighs 100 kg. Calculate its payload, if it is filled with He at 1.0 atm and 27°C. Density of air is 1.2 kg m−31.2 \text{ kg m}^{-3} . [ R=0.082 dm3 atm K−1 mol−1R = 0.082 \text{ dm}^3 \text{ atm K}^{-1} \text{ mol}^{-1} ]

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