Influence of concentration on an equilibrium.
CONSIDER ADDING MORE NO2 TO THIS EQUILIBRIUM MIXTURE ⇒
- THE REVERSE REACTION USES UP NO2 AND COUNTERACTS THIS
- THE REVERSE REACTION WILL GET FASTER THAN THE
FORWARD REACTION - AFTER A TIME THE TWO REACTIONS WILL EQUALISE AGAIN
ESTABLISHING A NEW EQUILIBRIUM - THE NEW EQUILIBRIUM MIXTURE WILL HAVE MORE N2O4
AND MORE NO2 THAN IN THE ORIGINAL EQUILIBRIUM MIXTURE.
N2 (g) + 3H2 (g) ⇌ 2NH3 (g)
⇐ WATCH AS:
- MORE HYDROGEN IS ADDED
Making the forward reaction become faster to counteract it.
The new equilibrium mixture will have more H2 and NH3 and less N2 - MORE NITROGEN IS ADDED
Again, making the forward reaction become faster to counteract it.
The new equilibrium mixture will have more N2 and NH3 and less H2 - SOME AMMONIA IS REMOVED
Making the the forward reaction faster to counteract it.
The new equilibrium will have less of all of the chemicals.
THE REACTION THAT COUNTERACTS (OR OPPOSES) THE CHANGE
ALWAYS SPEEDS UP – BUT THE NEW EQUILIBRIUM DOESN’T COMPLETELY RETURN TO THE ORIGINAL POSITION POSITION.
