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Diborane is a potential rocket fuel whic...

Diborane is a potential rocket fuel which undergoes combustion according to the equation `B_2H_6(g)+3O_2(g)toB_2O_3(s)+3H_2O(g)` Calculate the enthalpy change for the combustion of diborane. Given (i) `2B(s)+3/2O_2(g)toB_2O_3(s), DeltaH=-1273 kj per mol` (ii) `H_2(g)+1/2O_2(g)toH_2O(I), DeltaH=-286 kj per mol` (iii) `H_2O(I)toH_2O(g), DeltaH=44 kj per mol` (iv) `2B(s)+3H_2(g)toB_2H_6(g), DeltaH=36 kj per mol`

A

`+2035 kj per mol`

B

`-2035 kj per mol`

C

`+2167 kj per mol`

D

`-2167 kj per mol`

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