What are the factors that affect the solubility of a substance? What are the factors that affect the solubility of a substance? Write only three.
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Answer:
Solubility is the maximum amount of a substance that will dissolve in a given amount of solvent at a specific temperature.
Factors affecting solubility :
Temperature.
Basically, solubility increases with temperature.
Polarity.
In most cases solutes dissolve in solvents that have a similar polarity.
Pressure.
Solid and liquid solutes.
Molecular size.
Stirring increases the speed of dissolving.
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The three factors that affect solubility are temperature, pressure and surface area.
What is solubility?
Solubility is the maximum measure of solute that can be completely dissolved in a certain volume of solvent.
How temperature affects solubility?
- The relation of solubility and temperature is a direct connection.
- Rate of dissolution of solute in solvent increases with increase in solvent.
- As temperature increases, solubility also increases.
- With increase in temperature, particles of solute gain kinetic energy and moves faster which increases the interaction of particles with molecules of solvent.
How pressure affects solubility?
- Solubility of gas in liquid solvent is affected by pressure applied to gas.
- When pressure is applied to gas upon the solvent surface, particles of gas are forced into the solvent to occupy spaces between molecules of solvent.
- So, increase in pressure, increases the solubility.
How surface area affects solubility?
- Increasing the surface area, allows the solute of break down into smaller particles.
- Smaller particles gets easily dissolved in solvent.
- Greater the surface area, higher is the solubility.
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