Effect of Concentration

Definition:

• Concentration refers to the amount of a substance (usually in moles) dissolved in a given volume of a solution (usually in litres).

Importance:

• Concentration significantly influences the rate of chemical reactions.

Increased Concentration:

• When the concentration of reactants is increased, there are more reactant particles present in a given volume.

Effect on Reaction Rate:

• Faster Reactions: Increasing concentration leads to a higher rate of reaction.
  • More reactant particles result in more frequent collisions.
  • Example: Dissolving sugar in water - adding more sugar speeds up the dissolution process.
• Reaction Efficiency: Higher concentration allows for a greater chance of successful collisions between reactant particles.

Applications:

• Making stronger cleaning solutions by increasing the concentration of cleaning agents.
• Increasing the concentration of reactants in industrial processes to produce more product in less time.