The standard heat of combustion of Al is \[-\,837.8\,kJ\,mo{{l}^{-1}}\] at \[{{25}^{o}}C\]. If Al reacts with \[{{O}_{2}}\] at \[{{25}^{o}}C,\] which of the following releases 250 kcal of heat?

The reaction of 0.312 mole of Al

The reaction of 0.624 mole of Al

The formation of 0.624 mole of \[A{{l}_{2}}{{O}_{3}}\]

The formation of 0.150 mole of \[A{{l}_{2}}{{O}_{3}}\]

The standard heat of combustion of Al is \[-\,837.8\,kJ\,mo{{l}^{-1}}\

1.	The standard heat of combustion of Al is \[-\,837.8\,kJ\,mo{{l}^{-1}}\] at \[{{25}^{o}}C\]. If Al reacts with \[{{O}_{2}}\] at \[{{25}^{o}}C,\] which of the following releases 250 kcal of heat?
A.	The reaction of 0.624 mole of Al
B.	The formation of 0.624 mole of \[A{{l}_{2}}{{O}_{3}}\]
C.	The reaction of 0.312 mole of Al
D.	The formation of 0.150 mole of \[A{{l}_{2}}{{O}_{3}}\]
Answer» C. The reaction of 0.312 mole of Al

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The standard heat of combustion of Al is \[-\,837.8\,kJ\,mo{{l}^{-1}}\] at \[{{25}^{o}}C\]. If Al reacts with \[{{O}_{2}}\] at \[{{25}^{o}}C,\] which of the following releases 250 kcal of heat?

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