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Students in a laboratory are studying air flowing at steady state through a horizontal insulated duct....

Students in a laboratory are studying air flowing at steady state through a horizontal insulated duct. One student group reports the measured pressure, temperature, and velocity at one location in the duct as 0.95 bar, 67°C, and 75 m/s, respectively. The group reports the following values at another location in the duct: 0.8 bar, 22°C, and 310 m/s. The group neglected to note the direction of flow on the data sheet, however. Using the data provided, determine the direction of flow.

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