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Diborane is a potential rocket fuel whic...

Diborane is a potential rocket fuel which undergoes combustion according to the reaction,
`B_(2)H_(6) (g) + 3O_(2) (g) rarr B_(2) O_(3) (s) + 3H_(2) O (g)`
From the following data, calculate the enthalpy change for the combustion of diborane:
(i) `2 B (s) + ((3)/(2)) O_(2) (g) rarr B_(2) O_(3) (s) , Delta H = 0 1273 k J//mol`
(ii) `H_(2) (g) + ((1)/(2)) O_(2) (g) rarr H_(2) O (l), Delta H = -286 kJ//mol`
(iii) `H_(2) O (l) rarr H_(2)O (g) Delta H = 44 kJ//mol`
(iv) `2B (s) + 3H_(2) (G) rarr B_(2) H_(6) (g), Delta H = 36 kJ//mol`

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