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For the reaction N(2)+3H(2) rarr 2NH(3),...

For the reaction `N_(2)+3H_(2) rarr 2NH_(3)`, if `(d[NH_(3)])/(dt).=4xx10^(-4)` mol `L^(-1)s^(-1)`, the value of `(-d[H_(2)])/(dt)` would be

A

`1 xx 10^(-4)` mol `L^(-1)s^(-1)`

B

`3xx10^(-4) mol L^(-1) s^(-1)`

C

`4 xx 10^(-4) mol L^(-1) s^(-1)`

D

`6xx10^(-4) mol L^(-1) s^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B

`(1)/(3)(-d[H_(2)])/(dt)=(1)/(2)([NH_(3)])/(dt)`
` (-d[H_(2)])/(dt)=(3)/(2)(d[NH_(3)])/(dt)`
`(-d[H_(2)])/(dt)=(3)/(2)xx2xx10^(-4)`
`= 3 xx 10^(-4) mol L^(-1) s^(-1)`
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