A hot-air balloon is inflated by heating air at constant pressure. Assume the number of air molecules
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A hot-air balloon is inflated by heating air at constant pressure. Assume the number of air molecules inside the balloon remains constant and that it expands at atmospheric pressure.
(a) If the initial temperature and volume of the air inside the balloon are 18°C and 1600 m3, respectively, what is the final volume of the balloon when its temperature is increased to 65 °C?
(b) How much work does the balloon do to expand against atmospheric pressure?
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