Question 3 An insulated 1.15 m³ rigid tank contains air at 350 kPa and 50°C. A valve connected to the tank is now opened and air is allowed to escape until the pressure inside drops to 175 kPa. The air temperature during this process is kept constant by an electric resistance heater placed in the tank. Determine the electric work done during this process. The air is considered ideal gas with R-0.287 kPa m³/kg.K. At T-50 °C-323 K, h-323.30 kJ/kg and u-230.58 kJ/kg. Air V=1.15 m³ P= 350 kPa iT=50°C Wein

Question 3 An insulated 1.15 m³ rigid tank contains air at 350 kPa and 50°C. A valve connected to the tank is now opened and air is allowed to escape until the pressure inside drops to 175 kPa. The air temperature during this process is kept constant by an electric resistance heater placed in the tank. Determine the electric work done during this process. The air is considered ideal gas with R-0.287 kPa m³/kg.K. At T-50 °C-323 K, h-323.30 kJ/kg and u-230.58 kJ/kg. Air V=1.15 m³ P= 350 kPa iT=50°C Wein

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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