The standard heat of combustion of Al is -837-8 kJ mol -1 at 25-C- If Al reacts with O2 at 25-C- the formation of 0-150 mol of Al2O3 release x kJ of heat-x is -

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Heat of Formation

The standard ...

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The standard heat of combustion of $A l i s - 837.8 k J m o l^{- 1} a t 25^{\circ} C$ . If $A l$ reacts with $O_{2} a t 25^{\circ} C$ , the formation of $0.150 m o l o f A l_{2} O_{3}$ release $x k J$ of heat.
x is ....................

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A l i s - 837.8 k J m o l^{- 1} a t 25^{\circ} C

A l r e a c t s w i t h O_{2} a t 25^{\circ} C

250 k J

The standard heat of combustion of $A l$ is $- 837.8 k J m o l^{- 1}$ $25^{\circ} C$ which of the following releases $250 k c a l$ of heat?

A l (s)

- 838 k J m o l^{- 1}

298 K

A l

O_{2}

298 K

250 k J

The standard heat of combustion of $A l$ is $- 837.8 k J m o l^{- 1}$ $25^{\circ} C$ which of the following releases $250 k c a l$ of heat?

- x k J

- y k J

z k J

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