(Solution) - A critical nozzle is used for the accurate measurement of -(2025 Original AI-Free Solution)

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Academic Level: Undergrad. (yrs 3-4)

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A critical nozzle is used for the accurate measurement of the flow rate of air. Exhaust from a car engine is diluted with air so its temperature is 50°C at a total pressure of 100 kPa. It flows through the nozzle with throat area of 700 mm2 by suction from a blower. Find the needed suction pressure that will lead to critical flow in the nozzle and the mass flow rate.