Helium at 200 kPa, 20 ∘C is heated by mixing it with argon at 200 kPa, 500 ∘C in an adiabatic chamber. Helium enters the chamber at 2 kg/s and argon at 0.6 kg/s. The mixture leaves at 200 kPa. (Figure 1) Part A Determine the temperature (T2) at the exit. Express your answer to four significant figures. Part B Determine the rate of entropy generation (S˙gen) due to mixing. Express your answer to three significant figures in kW/K.

Helium at 200 kPa, 20 ∘C is heated by mixing it with argon at 200 kPa, 500 ∘C in an adiabatic chamber. Helium enters the chamber at 2 kg/s and argon at 0.6 kg/s. The mixture leaves at 200 kPa. (Figure 1) Part A Determine the temperature (T2) at the exit. Express your answer to four significant figures. Part B Determine the rate of entropy generation (S˙gen) due to mixing. Express your answer to three significant figures in kW/K.

Welding: Principles and Applications (MindTap Course List)

8th Edition

ISBN:9781305494695

Author:Larry Jeffus

Publisher:Larry Jeffus

Chapter5: Shielded Metal Arc Welding Of Pipe

Section: Chapter Questions

Problem 12R: What is the purpose of a hot pass?

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Part A

Determine the temperature (T2) at the exit.

Express your answer to four significant figures.

Part B

Determine the rate of entropy generation (S˙gen) due to mixing.

Express your answer to three significant figures in kW/K.

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