In: Chemistry
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
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