A frictionless piston/cylinder apparatus 100 mm in diameter contains water vapor with a quality of 20%. The piston, which has a mass of 16 kg, is floating on the vapor 50 mm above the bottom of the cylinder. Stops above the piston prevent it from moving upward more than 30 mm. Heat is added until the temperature reaches 400°C. Rather than interpolating for T₁ and ₁, you may assume the values are 105.1°C and 0.2837 m³/kg, respectively. Additionally, the saturated specific volumes at 121.26 kPa are 0.001048 m³/kg for saturated liquid and 1.414 m³/kg for saturated vapor. Find: a. the initial pressure b. the mass of water c. the quality when the piston hits the stops d. the final pressure of the water e. the work done by the water 4

A frictionless piston/cylinder apparatus 100 mm in diameter contains water vapor with a quality of 20%. The piston, which has a mass of 16 kg, is floating on the vapor 50 mm above the bottom of the cylinder. Stops above the piston prevent it from moving upward more than 30 mm. Heat is added until the temperature reaches 400°C. Rather than interpolating for T₁ and ₁, you may assume the values are 105.1°C and 0.2837 m³/kg, respectively. Additionally, the saturated specific volumes at 121.26 kPa are 0.001048 m³/kg for saturated liquid and 1.414 m³/kg for saturated vapor. Find: a. the initial pressure b. the mass of water c. the quality when the piston hits the stops d. the final pressure of the water e. the work done by the water 4

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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