Unit 1 Topic Visxosity And Densoty Flashcards
Define viscosity
The thickness or thinness of a fluid
define dehydration to separate mixtures.
uses evaporation to remove water from the solution.
define distillation
liquids are separated based on their boiling points then then condense the vapor to remove it.
what is hydrocarbons made of
simply hydrogen and carbons.
how do you process petroleum
use fraction distillation which separates liquid based on their boiling points and then condenses it.
define an ore
it is a mineral or a group of minerals that contains a valuable substance.
a solid that has a high viscosity has a low flow rate true or false
unanswerable because viscosity is only in liquids and gases.
a liquid with a high viscosity has a low (slow) flow rate t/f
true
higher temperatures make the viscosity higher t/f explain in liquids
f because when the temperature rises the particles spread apart making the particles flow easier.
what happens when you increase the temperature of a gas
the particles become faster making there be more collisions causing the particles to slow down.
when you increase the concentration does the viscosity become higher or lower. explain
higher because there are more particles making it harder for each particle to flow.
having a higher attractive force makes the viscosity higher t/f explain
t because the particles will want to be closer making it harder for each individual particle to flow.
why does having a higher particle size makes the viscosity higher
because it will be more difficult for the particles to flow past each other because each particle will take up more space.
define flow rate
a measurement of the time it takes a fluid to get from one point to another.
define density
it is the amount of matter in a given volume (how crowded a volume is)
what is usually the most dense, least dense, and in the middle for density between solids, liquids, and gases. explain
solids then liquids then gases because in a solid the particles are much closer together and therefore can hold more particles. liquid next because the particles are further apart from a solid and closer than a gas. gas last because the particles are far apart.
define mass
measurement of how much matter an object contains.
define weight
a measure of how strongly gravity pulls on said matter.
define volume
measurement of the amount of space occupied by a substance
how do you calculate the density of an object when presented with the volume and mass
mass mass divided by volume
______
volume
how do you find the mass if presented with the density and volume
(density) x (volunme)
how do you find the volume if presented with the density and mass
mass mass divided by density
_____
density
if an object is a liquid and you have a mass of 60G and a volume of 15ML fin the density
show all your work
M=60G 60/15=4 Answer is 4G/ML
V=15ML
D= M/V / means divide.
what is the triangle for mass density and volume?
Mass
/
Density x Volume
