Concentration of solids in equilibrium

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SUMMARY

The concentration of solids does not influence the rate of a chemical reaction because it remains constant during the reaction. Increasing the number of moles of a solid increases its volume, thereby keeping the concentration unchanged. However, an increase in the number of moles also enhances the surface area of the solid, which can accelerate the reaction speed. Despite this increase in speed, the equilibrium point remains unaffected, as the reaction rates in both directions equalize at the surface.

PREREQUISITES
  • Understanding of chemical equilibrium principles
  • Knowledge of reaction rates and factors affecting them
  • Familiarity with the concept of surface area in solid-state reactions
  • Basic grasp of mole concept in chemistry
NEXT STEPS
  • Research the principles of chemical equilibrium in detail
  • Learn about factors affecting reaction rates, focusing on surface area
  • Explore the concept of heterogeneous reactions and their dynamics
  • Study the impact of concentration changes in gaseous and liquid reactions
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Chemistry students, chemical engineers, and researchers interested in reaction kinetics and equilibrium dynamics.

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It's known that the concentration of solids don't affect the rate of the reaction since it's concentration is constant, I know that when the number of moles of a solid is increased the volume also increases the same so the concentration remains constant so the rate doesn't change, but when the number of moles of a solid increases it's surface area increases which should increase the rate of the reaction. :confused:
 
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It increases the speed of the reaction, but not the point of the equilibrium, where the reaction happens in the same speed in both directions at the surface.
 

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