A rigid tank whose volume is 0.5 m, initially containing ammonia at 20°C, 1.5 bar, is connected by a valve to a large supply line carrying ammonia at 12 bar, 200°C. The valve is opened only as long as required to fill the tank with additional ammonia, bringing the total mass of ammonia in the tank to 136.7 kg. Finally, the tank holds a two-phase liquid-vapor mixture at 20°C. Determine the heat transfer to the ammonia in the tank from the surroundings, in kJ, ignoring kinetic and potential energy effects. Qcv = 221077.408 x kJ

A rigid tank whose volume is 0.5 m, initially containing ammonia at 20°C, 1.5 bar, is connected by a valve to a large supply line carrying ammonia at 12 bar, 200°C. The valve is opened only as long as required to fill the tank with additional ammonia, bringing the total mass of ammonia in the tank to 136.7 kg. Finally, the tank holds a two-phase liquid-vapor mixture at 20°C. Determine the heat transfer to the ammonia in the tank from the surroundings, in kJ, ignoring kinetic and potential energy effects. Qcv = 221077.408 x kJ

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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Question

A rigid tank whose volume is 0.5 m, initially containing ammonia at 20°C, 1.5 bar, is connected by a valve
to a large supply line carrying ammonia at 12 bar, 200°C. The valve is opened only as long as required to fill
the tank with additional ammonia, bringing the total mass of ammonia in the tank to 136.7 kg. Finally, the
tank holds a two-phase liquid-vapor mixture at 20°C.
Determine the heat transfer to the ammonia in the tank from the surroundings, in kJ, ignoring kinetic and
potential energy effects.
Qcv
= 221077.408
x kJ

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Question 21 A rigid tank whose volume is 0.5 m, initially containing ammonia at 20°C, 1.5 bar, is connected by a valve to a large supply line carrying ammonia at 12 bar, 200°C. The valve is opened only as long as required to fill the tank with additional ammonia, bringing the total mass of ammonia in the tank to 136.7 kg. Finally, the tank holds a two-phase liquid-vapor mixture at 20°C. Determine the heat transfer to the ammonia in the tank from the surroundings, in kJ, ignoring kinetic and potential energy effects. Qcv > = kJ