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Thermodynamics: An Engineering Approach | 8th Edition | ISBN: 9780073398174 | Authors: Yunus A. Cengel
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Answer: Carbon dioxide enters an adiabatic nozzle at 1200

Chapter 17, Problem 1719

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QUESTION:

Carbon dioxide enters an adiabatic nozzle at  with a velocity of  and leaves at . Assuming constant specific heats at room temperature, determine the Mach number (a) at the inlet and (b) at the exit of the nozzle. Assess the accuracy of the constant specific heat approximation.

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QUESTION:

Carbon dioxide enters an adiabatic nozzle at  with a velocity of  and leaves at . Assuming constant specific heats at room temperature, determine the Mach number (a) at the inlet and (b) at the exit of the nozzle. Assess the accuracy of the constant specific heat approximation.

ANSWER:

Step 1 of 5

Carbon dioxide flows through a nozzle. The inlet temperature and velocity and the exit temperature of  are specified. The Mach number is to be determined at the inlet and exit of the nozzle.

Assumptions are  

1.  is an ideal gas with constant specific heats at room temperature.

2. This is a steady-flow process.

The gas constant of carbon dioxide is . Its constant pressure specific heat and specific heat ratio at room temperature are  and .

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