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Steam is contained in a closed rigid container with a volume of 2 m3 . Initially,...

Steam is contained in a closed rigid container with a volume of 2 m3 . Initially, the pressure and the temperature of the steam are 7 bar and 400°C, respectively. The temperature drops as a result of heat transfer to the surroundings. i. Determine the temperature at which the condensation first occurs in °C. [6 marks] ii. Evaluate the fraction of the total mass that has condensed when the pressure reaches 0.75 bar. [4 marks] iii. Calculate the volume in m3 , occupied by saturated liquid at the final state. [4 marks] iv. Show the process on the P - v (pressure – specific volume) diagram with respect to saturation lines.

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