Unit A: Mix and Flow of Matter Notes

3 Factor That Affect Solubility-Type of solute-Type of solvent-TemperatureParticle Model of Matter1. All matter is made up of tiny particles. Different matter is made up of different types of particles2. The tiny particles are always moving. The more energy (heat) they have, the faster they move3. Particles may be attracted or bonded to one another4. The particles have space between themFactors Affecting the Rate of Dissolving-Increased temperature (increases speed of particles and number of collisions)-Smaller pieces (solute has greater surface area)-Stirring it (moves particles around increasing the number of collisions)Viscosity- Viscosity is a measure of a fluid's ability to flow- Viscosity is determined by the fluid's internal friction or resistance- The higher the viscosity the 'thicker' the fluidDensity1cm3 = 1ml1L of water weighs 1kgThe density of water equals 1g/lPressuePressure is the measure of the amount of force applied to a certain areaP=F/AP(pressure)=F(force)/A(area)Pressure is measured in N/m2, N/cm2 or pascals 1Pa=N/m2Pascal's Law: An enclosed fluid transmits pressure equally in all directions

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