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The temperatures in scramjet combustors can easily become high enough at a significant fraction of the product of combustion (H2O) will dissociate into radicals (H+OH)

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The temperatures in scramjet combustors can easily become high enough at a significant fraction of the product of combustion (H2O) will dissociate into radicals (H+OH) at equilibrium. Plot the equilibrium mass fraction of dissociated water (i.e. the sum of mass fractions of H and OH ) for temperatures ranging from 1500 to 3000K. What is the maximum allowable temperature in the combustor if the mass fraction of water that dissociates is to be kept under 10% ? Assume that the temperature and pressure are specified ( P=2bar), that the mole fraction of the radicals is small and that Xoe=0.1

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