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Class-9, Science, Chemistry, chapter- Matter, All notes

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TOPPER NOTES OF matter chapter. Class-9 Science chemistry Chapter MATTER notes for all the school students. NCERT based notes which is written in very easy way to remember whole chapter before one night of exam and score full marks in chemistry. Full solution of chapter in only 4 pages and written in this form that can be still in your mind for long life.

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MATTERS

_______________

{o}MATTER:- Anything things which occupies space is called matter.


( MATTER ARE MADE UP OF PARTCLES )

_________________________________________________

{o}PARTICLES:- Chemicals combination of two or more atoms is called particles.


|-(1) Intermolecular force [I.M.F.]---the force that act b/w
|
two molecules and help them to bind together.
|
{ Characteristics of paricles}-----------------------(2)Intermolecular space
[I.M.S.]---the space b/w two
|
molecules.
|

|-(3)Kinetic energy---the energy which is poses by virtue

of motion(velocity) of an object.


[ PHYSICAL STATE OF
MATTER ]

________________________________________

{o}SOLID:- The pysical satate of matter that hasfixed shape and fixed volume.
{o}LIQUID:- The physical state of matter that has fixed volume but not fixed shape.
{o}GAS:- The physiacl state of matter which has neither fixed shape nor foxed
volume.


(CHARACTERISTICS):- (SOLID) (LIQUID)
(GAS)

{i} I.M.F.----------------------------------------------
[high]--------------------------[low]----------------------[very low]
{ii}I.M.S.-------------------------------------------[very
low]----------------------[high]---------------------[very high]
{iii}K.E.---------------------------------------------[very
low]----------------------[high]---------------------[very high]
{iv}RIGIDITY--------------------------------------
[yes]---------------------------[no]-----------------------------[no]
{v}COMPRESSEBILITY-------------------[no]----------------------------
[yes]----------------------------[yes]
{vi}BOILING TEMP.-------------------------[high]--------------------------
[low]--------------------------[very low]
{vii}MELTING POINT----------------------[high]--------------------------
[low]--------------------------[very low]
{viii}DENSITY-------------------------------------
[high]--------------------------[low]--------------------------[very low]

, (LIQUID)
/
\
solidification ------------> / \
<---------condensation
/
\
<-----------fusion/melting / \
vapourisation/boiling-------->
/
\
/
\
/
\
/
\
/
\
/ <----------------
depostion \
(SOLID)_______________________(GAS)
sublimation-------------
>


DIFFUSION
________________

{0} Diffusion:-The intermixing of particles of different types of matter on their
own.
------------------------------diffusion based on the motion (or movement) of its
particles------------------------------------------------
------------------------------the rate of diffusion increase on increasing the
temperature--------------------------------------

{o} S.I. Unit of temperature is KELVIN (K)

------temp. in kelvin= Celcious degree+273
------temp. in Celcious= K - 273


( We can change the state of matter of matter is 2 ways
)

________________________________________________________
-------i) by changing the temperature.
-------ii) by cahnging the pressure.

{o}MELTING POINT:- The temp. at which a solid melts and change with liquid at
atmospheric
pressure.

{o}BOILING POINT:- The temp. at which a substance change into gases at atmospheric
pressure.

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