Diborane is a potential rocket fuel that undergoes combustion according to the reaction,
`B_(2)H_(6)(g) +3O_(2)(g) rarr B_(2)O_(3)(g) +3H_(2)O(g)`
From the following data, calculate the enthalpy change for the combustion of diborane:
Diborane is a potential rocket fuel that undergoes combustion according to the reaction,
`B_(2)H_(6)(g) +3O_(2)(g) rarr B_(2)O_(3)(g) +3H_(2)O(g)`
From the following data, calculate the enthalpy change for the combustion of diborane:
`B_(2)H_(6)(g) +3O_(2)(g) rarr B_(2)O_(3)(g) +3H_(2)O(g)`
From the following data, calculate the enthalpy change for the combustion of diborane:
Text Solution
Verified by Experts
`B_(2)H_(6(g))+3O_(2(g))rarr B_(2)O_(3(s))+3H_(2)O_((g)), DeltaH=?`
Multiply `eq.(2)` and `(3)` by 3, add `eqs.(1),(2) and (3)` and then subtract `eq.(4)` from that
`2B_((s))+(3)/(2)O_(2(g))rarr B_(2)O_(3(s)), DeltaH=-1273kJmol^(-1).....(1)`
`3H_(2(g))+(3)/(2)O_(2(g)) rarr 3H_(2)O_((l)), DeltaH=-286xx3 ....(2)`
`ul (3H_(2)O_((l)) rarr 3H_(2)O_((g)), DeltaH=44xx3 .....(3))`
`2B_((s))+3H_(2(g))+3O_(2(g)) rarr B_(2)O_(3(s))+3H_(2)O_((g)),DeltaH=-1999`
`ul ({:(2B_((s)),+3H_(2(g)),rarr,B_(2)H_(6(g)),,DeltaH=36),(-,-,,-," -"):})`
`B_(2)H_(6(g))+3O_(2(g))rarr B_(2)O_(3(s))+3H_(2)O_((g)), DeltaH=-2035kJ mol^(-1)`
Multiply `eq.(2)` and `(3)` by 3, add `eqs.(1),(2) and (3)` and then subtract `eq.(4)` from that
`2B_((s))+(3)/(2)O_(2(g))rarr B_(2)O_(3(s)), DeltaH=-1273kJmol^(-1).....(1)`
`3H_(2(g))+(3)/(2)O_(2(g)) rarr 3H_(2)O_((l)), DeltaH=-286xx3 ....(2)`
`ul (3H_(2)O_((l)) rarr 3H_(2)O_((g)), DeltaH=44xx3 .....(3))`
`2B_((s))+3H_(2(g))+3O_(2(g)) rarr B_(2)O_(3(s))+3H_(2)O_((g)),DeltaH=-1999`
`ul ({:(2B_((s)),+3H_(2(g)),rarr,B_(2)H_(6(g)),,DeltaH=36),(-,-,,-," -"):})`
`B_(2)H_(6(g))+3O_(2(g))rarr B_(2)O_(3(s))+3H_(2)O_((g)), DeltaH=-2035kJ mol^(-1)`
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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
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(s) From the following data , calculate the enthalpy change for the combustion of diborane. 2B(s) + (3)/(2) O_(2) (g) rarr B_(2)O_(3)(s) , DeltaH= - 1273kJ mol^(-1) ......(i) H_(2)(g)+(1)/(2)O_(2)(g) rarr H_(2)O(l) , DeltaH = - 286kJ mol^(-1) ....(ii) H_(2)O(l) rarr H_(2)O(g), Delta H= 44 kJ mol^(-1) ....(iii) 2B (s) + 3H_(2)(g) rarr B_(2)H_(6)(g), DeltaH = - 36 kJ mol^(-1) .....(iv)
Knowledge Check
Diborane is a potential rocket fuel which undergoes combustion according to the reaction: B_(2)H_(6)(g) + 3O_(2)(g) to B_(2)O_(3) (s) + 3H_(2)O (g) From the following data, calculate the enthalpy change for the combustion of diborane.
Diborane is a potential rocket fuel which undergoes combustion according to the reaction: B_(2)H_(6)(g) + 3O_(2)(g) to B_(2)O_(3) (s) + 3H_(2)O (g) From the following data, calculate the enthalpy change for the combustion of diborane.
A
`-2035 kJ mol^(-1)`
B
`-2045 "kj mol"^(-1)`
C
`-2135 "kJ mol"^(-1)`
D
`-2285 "kJ mol"^(-1)`
Diborane is a potential rocket fuel which undergoes combustion according to the reaction, B_(2)H_(6)(g)+3O_(2)(g)toB_(2)O_(3)(s)+3H_(2)O(g) from the following data, the enthalpy change for the combustion of diborane will be : 2B(s)+(3)/(2)O_(2)(g)toB_(2)O_(3)(s)," "DeltaH=-1273 " kJ" H_(2)(g)+(1)/(2)O_(2)(g)toH_(2)O(l)," "DeltaH=-286 " kJ" H_(2)O(l)toH_(2)O(g)," "DeltaH=44" kJ" 2B(s)+3H_(2)(g)toB_(2)H_(6)(g)," "DeltaH=46" kJ"
Diborane is a potential rocket fuel which undergoes combustion according to the reaction, B_(2)H_(6)(g)+3O_(2)(g)toB_(2)O_(3)(s)+3H_(2)O(g) from the following data, the enthalpy change for the combustion of diborane will be : 2B(s)+(3)/(2)O_(2)(g)toB_(2)O_(3)(s)," "DeltaH=-1273 " kJ" H_(2)(g)+(1)/(2)O_(2)(g)toH_(2)O(l)," "DeltaH=-286 " kJ" H_(2)O(l)toH_(2)O(g)," "DeltaH=44" kJ" 2B(s)+3H_(2)(g)toB_(2)H_(6)(g)," "DeltaH=46" kJ"
A
`-2079 " kJ" " mol"^(-1)`
B
`-1091 " kJ" " mol"^(-1)`
C
`-2045 " kJ" " mol"^(-1)`
D
`-762 " kJ" " mol"^(-1)`
Diborane is potentia rocket fuel which undergoes combustion acording to the equation B_2H_6(g) +3O_2(g) rarr B_2O_3(g) +3H_2O(g) calculate the enthalpy change for the combustion of diborane.
Diborane is potentia rocket fuel which undergoes combustion acording to the equation B_2H_6(g) +3O_2(g) rarr B_2O_3(g) +3H_2O(g) calculate the enthalpy change for the combustion of diborane.
A
(+2305kcal)
B
(-2035 kj/mol)
C
(+2167 kj/mol)
D
(-2167 kj/mol)
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Diborane is a potential rocket fuel with undergoes combustion according to the reaction B_(2)H_(6)(g) + 3O_(2)_(g) to B_(2)O_(3)(s) + 3H_(2)O(g) From the following data, calculate the enthalpy change for the combustion of diborane. 2B(s) + 3/2O_(2)(g) to B_(2)O_(3)(g), DeltaH = -1273 kJ "mol"^(-1) ........(1) H_(2)(g) + 1/2O_(2) (g) to H_(2)O(l), DeltaH = -286 kJ"mol"^(-1) .........(2) H_(2)O(l) to H_(2)O(g), DeltaH= 44 kJ "mol"^(-1) H_(2)O(l) to H_(2)O(g), DeltaH = 44 kJ "mol"^(-1) .........(4) 2B(s) + 3H_(2)(g) to B_(2)H_(8)(g), DeltaH = 36 kJ"mol"^(-1) ............(5)
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