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The temperature of benzene in a processing tank is maintained by recycling this liquid through a heat exchanger, using a pump that has an impeller speed of 1850 rpm and produces a flow of 850 gal/min Q Tap image to zoom Part A If it is found that the heat exchanger can maintain the temperature only when the flow is 700 gal/min determine the required angular speed of the impeller. Express your answer using three significant figures. rpm
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