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NH(3)(g) + 3Cl(2)(g) rarr NCl(3)(g) + 3H...

`NH_(3)(g) + 3Cl_(2)(g) rarr NCl_(3)(g) + 3HCl(g), " "DeltaH_(1)`
`N_(2)(g) + 3H_(2)(g) rarr 2NH_(3)(g), " "Delta H_(2)`
`H_(2)(g) + Cl_(2)(g) rarr 2HCl(g), " "Delta H_(3)`
The heat of formation of NCl3(g) in the terms of `DeltaH_(1), DeltaH_2 and DeltaH_(3)` is :

A

`triangleH_(f)=-triangleH_(1)+(triangleH_(2))/(2)-3/2 triangleH_(3)`

B

`triangleH_(f)=triangleH_(1)+(triangleH_(2))/(2)-3/2 triangleH_(3)`

C

`triangleH_(f)=triangleH_(1)-(triangleH_(2))/(2)-3/2 triangleH_(3)`

D

`triangleH_(f)=triangleH_(1)+(triangleH_(2))/(2)-triangleH_(3)`

Text Solution

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The correct Answer is:
A
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