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Hydrogen is burned with oxygen as follows: ? 2 ( ? ) + 12 ? 2...

Hydrogen is burned with oxygen as follows:
? 2 ( ? ) + 12 ? 2 ( ? ) → ? 2 ? ( ? )
Hydrogen and oxygen are fed in stoichiometric proportions to a continuous adiabatic reactor at 25oC and 1 atm. The reaction proceeds to completion. Assuming 1 mol/s of hydrogen as a basis, calculate the reactor exit stream temperature (oC) using heat of formation method.

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