For the following reaction at equilibrium, which choice gives a change that will shift the position...

For the following reaction at equilibrium, which choice gives a change that will shift the position of equilibrium to favor formation of more products? 2NOBr(g) ↔ 2NO(g) + Br2(g), ∆Horxn = 30 kJ/mol (1 point ) *

Add more Br2

Increase total pressure

Lower temperature

Remove Br2

For the following reaction at equilibrium in a reaction vessel, which one of these changes would cause the Br2 concentration to decrease? 2NOBr(g) ↔ 2NO(g) + Br2(g), ∆Horxn= 30 kJ/mol (1 point ) *

Compress gas mixture into a smaller volume

Increase temperature

None of the above

Remove NO

Solutions

Expert Solution

The given equilibrium reaction is 2NOBr(g) ↔ 2NO(g) + Br2(g), ∆Horxn = 30 kJ/mol

According to Le-chatliers principle: when a system at equilibrium,undergoes stress the equilibrium shifts in such a way that,in order to undo the stress.

a. removal of Br2 shifts the equilibrium towards the right side (products side)

b) Removal of No shifts the equilibrium towards the back ward reaction (reactant side) and hence causes the decrease in the concentration of Br2

queen_honey_blossom answered 1 year ago

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