Topic 14 Flashcards
(22 cards)
gas to solid/ solid tp gas
sublimation
soild
close together, regular pattern
vibrate in fixed position
low energy
liquid
close together randomly arranged
vibrate and move around each other
medium energy
(diagram takes up more than 50% of space, touching)
gas
far apart, randomly arranged
vibrate and moves quickly in any direction
high energy
why does ice float on watre
its less dence
anomply since solids are menat to hace a higer density than liquid
absolute zero
molecles have no kenetic energy at -273 lowest temp
since you nat have nergaitve energy this will be the lowest
space
absolute zero, vacum
-273 degrees
Ok (kelivin)
O degrees
273 K
100 degrees
373 K
K to C
- 273
C to K
+273
who doesnt temp incraese when state chnages
extra energy is making particles break bonds
spesific heart capacity
amount of energy required to raise the temp of 1kg by 1 degree C
why is cheese hotter than crust
The cheese is hotter than the crust when it comes out of the oven as it has a higher specific heat capacity.
spesific latenet heat
how much energy by kg needed
spesific latet heat of fusion
between solid and liquid, freezing & melting
how to improve specific heat capacity
- insulate
- ## stirrer
specific latent heat
how much energy per kg of substance is needed to change state
spesific latent heat of vapourisation
between liquid and gas
temperature
the amount a measure of the average kinetic energy of its particles
presuure
caused by colliions between particles and cointainer
container exerts force on the sides
