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C(2)H(6)(g) + 3.5O(2)(g) rarr 2CO(2)(g) ...

`C_(2)H_(6)(g) + 3.5O_(2)(g) rarr 2CO_(2)(g) + 3H_(2)O(g)`
`DeltaS_("vap") (H_(2)O,l) = "x"_(1)calK^(-1)` (boiling point `=T_(1)`)
`DeltaH_(f)(H_(2)O,l) = "x"_(2)`
`DeltaH_(f)(CO_(2)) = "x"_(3)`
`DeltaH_(f)(C_(2)H_(6)) = "x"_(4)`
Hence , `DeltaH` for the reaction is-

A

`2x_(3) + 3x_(2) - x_(4)`

B

`2x_(3) + 3x_(2) - x_(4) + 3x_(1)T_(1)`

C

`2x_(3) + 3x_(2) - x_(4) - 3x_(1)T_(1)`

D

`x_(1)T_(1) + X_(2) + X_(3) - x_(4)`

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