Matter and Temperature Flashcards
what kind of matter is air?
homogeneous mixture
what are the states of matter from lowest energy to highest energy
Bose-Einstein Condensate
Solid
Liquid
Gas
Plasma
what is the state of matter with lowest energy?
Bose-Einstein Condensate
as the temperature of something decreases, the motion of the particles _____
decreases
what is the coldest possible temperature in Farenheit?
-460 F
what is the coldest possible temperature in Celsius?
-273 C
what is the coldest possible temperature in Kelvin?
0 K
what is the freezing point of water in Fahrenheit??
32 F
what is the boiling point of water in Fahrenheit?
212 F
what is the freezing point of water in Kelvin?
273 K
what is the boiling point of water in Kelvin?
373 K
what type of heat (convection,, conduction, or radiation) is a microwave?
radiation
what is the equation for energy (with specific heat?)
E = m . Cp . (change in T)
what is the equation for change in temperature
E / m . Cp
what is the specific heat of water?
4,184
if you’re conducting something, do you want to use a metal with a low specific heat or high specific heat?
LOW SH
because it takes less energy to heat up and will get hotter faster
if you’re trying to cool an object down, (pull as much energy out of it as you can) should you use an object with high specific heat or low SH to draw the energy away?
HIGH SPECIFIC HEAT
because it can pull out and retain the most thermal energy and will TAKE a lot of energy to reach to equilibrium, cooling the other object down a lot
if you’re heating up an object and dropping it into water with the goal to raise the temp of the water, should you drop in an object with high SH or low SH?
HIGH SPECIFIC HEAT
because it retains the most energy, so when heated it would release the most thermal energy
explain specific heat
the amount of energy that it takes to raise or lower the temperature of an object. it gives away how fast the object will heat/cool and how it retains heat
define heat
thermal energy that is capable of moving
what is a vaccum
a place where no atoms/molecules are present, so no heat can transfer!
when does a sea breeze happen?
WHEN THE SUN IS UP
hot air over sand rises, cooler air from the sea rushes in
when does a land breeze happen?
WHEN SUN HAS SET
sand cools faster, air gets colder, rushes out to sea to fill in space from the rising warmer ocean air
what is matter that contains a combination of different elements and compounds
mixture!
what is the force between atoms and molecules that resists particle motion
intermolecular forces
blood is a
homogeneous mixture
salt water is a
homogeneous mixture
S + NaCl + H20 is a
heterogeneous mixture
(sulfur plus salt plus water)
the amount of heat needed to raise the temp of 1g of water by 1 C
calorie
the amount of energy required to increase one pound of water by 1 degree F
BTU
