Question: 10 pts) For a combustion process, we need to preheat the gas mixture to promote the efficiency. If we have a stream of air with

10 pts) For a combustion process, we need to preheat the gas mixture to promote the efficiency. If we have a stream of air with the volumetric flow rate of 250 (ft)3 (s)-1 at the temperature of 100 (F) and approximately atmospheric pressure. To preheat it to 890 (F) for a combustion process, what rate of heat transfer is required?

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