Air enters a one-inlet, one-exit control volume at 6 bar, 500 K, and 30 m/s through a flow area of 28 cm 2. At the exit, the pressure is 3 bar, the temperature is 455 K, and the velocity is 300 m/s. The air behaves as an ideal gas (constant specific heat can be assumed). Potential energy effects are negligible. • Is the control volume open, closed, or isolated? • For steady-state operation, o the mass flow rate, in kg/s, is o the exit flow area, in cm2, is

Air enters a one-inlet, one-exit control volume at 6 bar, 500 K, and 30 m/s through a flow area of 28 cm 2. At the exit, the pressure is 3 bar, the temperature is 455 K, and the velocity is 300 m/s. The air behaves as an ideal gas (constant specific heat can be assumed). Potential energy effects are negligible. • Is the control volume open, closed, or isolated? • For steady-state operation, o the mass flow rate, in kg/s, is o the exit flow area, in cm2, is

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Ideal Gas Law

Ideal gas law states that the product of pressure and volume of a gas directly varies with the product of the number of moles, the universal gas constant, and the temperature of the gas.

Question

Air enters a one-inlet, one-exit control volume at 6 bar, 500 K, and 30 m/s through a flow area of 28 cm 2.
At the exit, the pressure is 3 bar, the temperature is 455 K, and the velocity is 300 m/s.
The air behaves as an ideal gas (constant specific heat can be assumed). Potential energy effects are negligible.
• Is the control volume open, closed, or isolated?
• For steady-state operation,
o the mass flow rate, in kg/s, is
o the exit flow area, in cm2, is
• Is the heat transfer negligible? If so, indicate why; if not, report the value in kl/s.
• Of the engineering compponents discussed in class, which deivce does this control volume most nearly resemble?

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