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An intimate mixture of ferric oxide, Fe(...

An intimate mixture of ferric oxide, `Fe_(2)O_(3)`, and aluminium is used in solid-fuel rocket. Calculate the fuel value per gram and the fuel value per c c of the mixture. Heats of formation densities are as follows:
`._(f)H(AI_(2)O_(3)) =- 399 kcal mol^(-1)`
`_.(f)H(Fe_(2)O_(3)) = - 199 kcal mol^(-1)` ltbegt Density of `Fe_(2)O_(3) = 4.0 g c c^(-1)`
Density of `AI = 2.0 g c c^(-1)`

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The correct Answer is:
3.94 kcal/mL
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