A vertical piston-cylinder arrangement with a diameter of 120 mm contains water with a quality of 60%. The pressure is 3 bar.Initially the piston rests 40 mm above the bottom of the cylinder. Heat is then added until the volume is 3 times the originalvolume.(a) Determine the mass of the water in the cylinder [ Select ]kg(b) Determine the work done. [ Select ](J)(c) The final temperature [Select ]°C(d) The heat transferred to the system 1.8 kJ Air passes along an insulated horizontal pipe of 0.05 m2 cross sectional area. In the pipe it passes over a heating element. Itenters at 20 degrees C, 1.013 bar and 30 m/s.Rair = 287 J/kg.K and C,=1005 J/kg.K(a) Determine the mass flow rate of the air. [ Select ]kg/s(b) Determine the temperature of the air at the exit if the pressure is 1.5 bar (you may assume velocity change is negligible)[ Select ]K(c) Determine the rate of heat input [ Select ]kW

Given data Area of insulated pipe = 0.05 m2Temperature at entry = T1 = 20°C = 293 KPressure at entry…

Air passes along an insulated horizontal pipe of 0.05 m2 cross sectional area. In the pipe it passes over a heating element. It enters at 20 degrees C, 1.013 bar and 30 m/s. Rair = 287 J/kg.K and C,-1005 J/kg.K (a) Determine the mass flow rate of the air. Select ] kg/s (b) Determine the temperature of the air at the exit if the pressure is 1.5 bar (you may assume velocity change is negligible) [ Select ] K (c) Determine the rate of heat input [ Select] kW

Air passes along an insulated horizontal pipe of 0.05 m2 cross sectional area. In the pipe it passes over a heating element. It enters at 20 degrees C, 1.013 bar and 30 m/s. Rair = 287 J/kg.K and C,-1005 J/kg.K (a) Determine the mass flow rate of the air. Select ] kg/s (b) Determine the temperature of the air at the exit if the pressure is 1.5 bar (you may assume velocity change is negligible) [ Select ] K (c) Determine the rate of heat input [ Select] kW

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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