An elastic balloon behaves such that pressure is proportional to diameter and the balloon contains 0 5 kg air at 200 kPa, 30 61616 C The balloon is momentarily connected to an air line at 400 kPa, 100 61616 C Air is let in until the volume doubles, during which process there is a heat transfer of 50 kJ out of the balloon Find the final temperature and the mass of air that enters the balloon

Question: An elastic balloon behaves such that pressure is proportional to diameter and the balloon contains 0.5 kg air at 200 kPa, 30C. The balloon is

An elastic balloon behaves such that pressure is proportional to diameter and the balloon contains 0.5 kg air at 200 kPa, 30C. The balloon is momentarily connected to an air line at 400 kPa, 100C. Air is let in until the volume doubles, during which process there is a heat transfer of 50 kJ out of the balloon. Find the final temperature and the mass of air that enters the balloon.

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