4. Carbon dioxide gas enters a pipe at 3 MPa and 500 K at a rate of 2 kg/s. CO2 is cooled at constant pressure as it flows in the pipe and the temperature of CO2 drops to 450 K at the exit. Determine the volume flow rate and the density of carbon dioxide at the inlet and the volume flow rate at the exit of the pipe using: (a) the ideal-gas equation and (b) the generalized compressibility chart. (c) Also, determine the error involved in the first case

4. Carbon dioxide gas enters a pipe at 3 MPa and 500 K at a rate of 2 kg/s. CO2 is cooled at constant pressure as it flows in the pipe and the temperature of CO2 drops to 450 K at the exit. Determine the volume flow rate and the density of carbon dioxide at the inlet and the volume flow rate at the exit of the pipe using: (a) the ideal-gas equation and (b) the generalized compressibility chart. (c) Also, determine the error involved in the first case

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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Concept explainers

Properties of Pure Substances

A substance with fixed chemical composition throughout is called a pure substance like water, air, and nitrogen. A pure substance does not have to be a single element or compound. A mixture of two or more phases of a pure substance is also a pure substance as long as the chemical composition is the same for all phases. These substances mainly have a constant/ uniform composition. The substances also have fixed boiling and melting points. A pure substance takes part in a chemical reaction to form predictable products.

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4. Carbon dioxide gas enters a pipe at 3 MPa and 500 K at a rate of 2 kg/s. CO2 is cooled at
constant pressure as it flows in the pipe and the temperature of CO2 drops to 450 K at the exit.
Determine the volume flow rate and the density of carbon dioxide at the inlet and the volume
flow rate at the exit of the pipe using:
(a) the ideal-gas equation and
(b) the generalized compressibility chart.
(c) Also, determine the error involved in the first case
3 МРа
500 K
CO -
450 K
2 kg/s

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