Question: A spherical balloon has an initial diameter of 1 m and contains argon gas at 200 kPa, 40C. The balloon is connected by a valve

A spherical balloon has an initial diameter of 1 m and contains argon gas at 200 kPa, 40C. The balloon is connected by a valve to a 500-L rigid tank containing carbon dioxide at 100 kPa, 100C. The valve is opened, and eventually the balloon and tank reach a uniform state in which the pressure is 185 kPa. The balloon pressure is directly proportional to its diameter. Take the balloon and tank as a control volume, and calculate the final temperature and the heat transfer for the process.

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