matter Flashcards
interconversion of matter definition
the phenomenon of change of matter from one state to another state and back to the original state, by altering the conditions of temperature and pressure, etc , is known as the inter conversion of matter.
gas to solid
deposition
definition and properties of gases
state of matter with definite mass but no definite volume or shape
-contained on a vessel has definite mass
-intermolecular spaces are veryyyyy high and hence are high compressable
-intermolecular forces are negligble
-no free spaces
-diffuse into one another rapidly
-extremely low density
substance
a homogeneous material with only one kind of atom or molecules
liquid to solid
freezing pr solidification
material definition and kinds
the term used for a particular kind of matter is called material.
homogeneous- same properties and composition throughout
heterogeneous-different properties and composition in different parts
gas
temp equal or more than boiling point
definition and properties of solids
a state of matter with a definite shape and definite volume
-generally rigid
-any number of free surfaces
-intermolecular spaces are small intermolecular force is high
-generally high density
-little to no thermal expansion
-do not diffuse
kinetic theory of matter
-all matter is composed of small particles called atoms
-the particles are in a state of unending motion and hence they have kinetic energy
-with the supply of heat energy, the particles start moving more vigorously, and hence the kinetic energy increases. the reverse happens if the matter is cooled
- the particles attract each other with a force. cohesive if they are different kinds of particles and adhesive if the particles are of the same type.
-The force of attraction decreases with increases in distance and vice versa
definition and characteristics of matter
def: Anything that occupies space (volume), has mass, and can be perceived by our physical senses is called matter.
-volume
-mass
-weight
-perception by physical senses
definition and properties of liquids
a state of matter with definite mass and volume but no definite shape
-force of attraction is less than solids but more than gases and thus are compressible
-only one free surface at the top
-density is relatively less than solids
-expand on heating and contract on cooling way more than solids
-can diffuse depending on the nature of the molecules
liquid to gas at a fixed temp
boiling or vapourisation
vapour
temp lower than boi;ling point
solid to gas
sublimation
solid to liquid
melting or fusion
