Water Flashcards
Heat Capacity
The amount of thermal energy needed to raise the temperature of 100g of a substance by 1°C.
- Water has a high heat capacity, meaning it takes a lot of thermal energy to increase the temperature of 100g of water by 1°C
Cohesion
Intermolecular attraction of molecules of the same substance
- Water is attracted to other water molecules
Adhesion
An Intermolecular attraction of molecules of different substances
- Water is attracted to molecules of other substances
Capillary Action
The ability for a fluid to flow through narrow spaces without expelling energy
-Requires both cohesion and adhesion
Homogenous Mixture
A mixture made up of 2 or more substances whose proportions of components are the same throughout the mixed substance
- Even distribution
Heterogenous mixture
A mixture made up of 2 or more substances whose proportions of components differ throughout the mixed substance
- Uneven distribution
Solute
A substance that dissolves in another substance (substance being dissolved)
Solvent
A substance in which another substance dissolves (substance doing the dissolving)
Solution
Stable liquid homogenous mixture with a solute dissolved in a solvent
Suspension
A heterogenous mixture in which the solute is made of large, solid particles that will settle out from the solvent when left to sit for a while.
Emulsion
A suspension of hydrophobic substance into an aqueous solution
Aqueous
Water-based
- Containing water (usually as a solvent)
Insoluble
A substance that is unable to dissolve
Precipitate
Cause a substance to be deposited in a solid form from a solution
- if too much solute is added, the insoluble solute will settle out, causing precipitate
Hydrophilic
Attracted to water
- Will mix with water
- Charged or polar particles
