kinetic particle theory Flashcards
(9 cards)
what is kinetic particle theory made up of?
it is made up of tiny particles that move about constantly and randomly
what are the states of matter
.solid
.liquid
.gas
propeties of a solid
-fixed vol and shape
-the arrangement of particles is very closely packed in an orderly manner
-the movement of particle is vibration and rotate in fixed position
-the forces of attraction between particles is very strong
-kinetic energy of particles is very low
-shape and vol is defined
-cannot be compressed
properties of liquids
- have fixed vol but takes on the shape of their containers
- the movement of particles is closely packed in a disorderly manner
-particle movement, slide past eachother freely throughout the liquid - forces of attraction btwn particles is less strong
- kinetic energy of particles is low
- shape is indefinite
- vol is defined
- cannot be compressed
properties of gases
- gases take on the vol and shape of the containers
- arrangement of particles is very far apart in s disorderly manner
- particle movement, move quickly and randomly in any direction
- forces of attraction btwn particles is very weak
- kinetic energy of particles is high
- shape n vol is indefinite
- can be compressed
what is transition temps
its when heating or cooling a substance, it does not just increase or decrease temp of substance, it changes the state of the substance at certain temps
what happens to the particles in the food when it is heated up
when the food is heated, thermal energy is transferred to its particles. some of the energy is converted to kinetic energy. with greater kinetic energy, the particles move quickly.
how is the temp of food decreased
when food is cooled, the kinetic energy of its particles is converted to thermal energy. the thermal energy is tranferred to its surrounding and is removed