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In above question7, if the density of Fe...

In above question7, if the density of `Fe_(2)O_(3)` and `Al` are `5.2g//mL` and `2.7g//mL` respectively. Calculate the fuel value in `kcal mL^(-1)` of mixture.

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The correct Answer is:
4
Now volume of fusion mixture `=vol. ` of `Al+vol. of F_(2)O_(3)`
`=(54)/(2.7)+(160)/(5.2)=50.70mL ( :. V=(mass)/(density))`
`:' 50.70mL` mixture produce `=200kcal`
`(` In solution `)`
`:. 1 mL` mixture produce`=(200)?(50.70)=3.95`
~~4 kcal mL ^(-1)`
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