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What would be the effect of increasing t...

What would be the effect of increasing the volume of each of the following system at equilibrium?
a. `2CO(g) +O_(2)(g) hArr 2CO_(2)(g)`
b. `NI(s)+4CO(g) hArr NI(CO)_(4)(g)`
c. `N_(2)O_(4)(g) hArr 2NO_(2)(g)`

Text Solution

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Increasing volume (at constant temperature) will result in a decrease in the concentration of all the gases. As per Le Chatelier's Principle, the reaction should move in a direction of increase in total number of gaseous moles (thereby increasing concentration). thus, the shift is in a direction of `Deltan_(g) gt 0`.
a. `2CO(g)+O_(2)(g) hArr 2CO_(2)(g), ["Backward direction" :. (Deltan_(g))_("Backward direction") gt 0]`
b. `Ni(s)+4CO_(2)(g) hArr Ni(CO)_(4)(g), ["Backward direction" :. (Deltan_(g))_("Backward direction") gt 0]`
c. `N_(2)O_(4)(g) hArr 2NO_(2)(g), ["Forward direction" :. (Deltan_(g))_("Forward direction") gt 0]`
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