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Q6. Humid air is enclosed in a piston-cylinder system at a constant pressure of 1 atm. Initially, the system is with the temperature of 30C

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Q6. Humid air is enclosed in a piston-cylinder system at a constant pressure of 1 atm. Initially, the system is with the temperature of 30C and a relative humidity of 80%. (i) If the system volume is 1 m, determine the weight of dry air and water content in the system, respectively. (2 marks) (ii) What is the amount of heat needed to heat up the system to 50 C? (8 marks)

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