Mix & Flow - States Of Matter Flashcards
What is Viscosity?
The resistance a liquid has to flow. All liquids flow at different speeds.
How do you calculate the flow rate?
-Measure the speed of the liquid
-Measure how far the liquid has to flow
-Divide the distance by the amount of time the liquid takes to flow that distance
How does viscosity impact flow rate?
The higher the viscosity a substance has, the slower the flow rate.
How are the particles/molecules different when comparing viscous substances vs. less viscous substances?
Substances with more viscosity also have a higher density and a slower flow rate because they have larger and more jagged molecules.
Substances with less viscosity also have a lower density and a faster flow rate. This is because the molecules/particles are smaller and less jagged.
What type of opening is more optimal for high and low-viscosity substances?
Low Viscosity: Small openings are most useful for less viscous liquids as they flow fast and a small opening allows the amount of liquid escaping to be controlled. Ex. Olive oil
High Viscosity: High viscous liquids require a larger opening as they flow very slowly and would take way too long to pour if they were poured out of a small opening. A large opening would also allow more liquid to flow out and allow it to pour smoothly without being restricted. Ex. Liquid cement
What unit is the flow rate of liquids measured in?
cm/s Centimeters per second
What is Matter?
Matter is what makes up everything
What is a pure substance?
A single substance that is made up of one type of particle.
What is a mixture?
Multiple substances combined into a solution
What is a heterogeneous mixture?
A mixture where you can see the separate parts and the different substances are distinguishable.
What is a homogeneous mixture?
A mixture that appears to be combined into one substance.
What is a Mechanical Mixture?
It is a heterogenous mixture, in that the different substances combined are distinguishable from each other and different kinds of matter are visible in the mixture.
Solution
Substances dissolved together.
Solute
The substance that gets dissolved
Solvent
The substance that dissolves the solute
Saturated
When a substance can no longer dissolve any more solute
Solid
A substance with a definite shape and volume
Liquid
Has a definite volume but not a definite shape
Gas
Has no definite shape or volume
Sublimation
When a substance shifts from a solid to a gas
Deposition
When a substance goes from gas to solid
Condensation
When a substance goes from gas to liquid
Solidification
When a substance goes from Liquid to solid
Compound
2 or more elements chemically combined.
