Physical State, Classification and Properties of Matter

Physical states of matter

=> Solid, liquid, gas.
 Physical state Definite volume Definite shape Example Solid Yes Yes Book, pen Liquid Yes No Water, milk Gas No No CO2, Air

Classification of matter: –

1.       Mixture:
a.       Homogeneous mixture
b.      Heterogeneous mixture
2.       Pure substance:
a.       Elements
b.      Compounds
1.       Mixture: – It contains two or more substances in any ration known as its components.
Ex: – air, tea etc.
a.       Homogeneous mixture:- its components are completely mix with each other and have uniform composition throughout the solution.
Ex:- sugar solution, air.
b.      Heterogeneous mixture:- its components do not have uniform composition throughout solution sometimes different components observed.
Ex:- mixture of salt & sugar, sand & soil.
2.       Pure substances:- these have fixed composition.
Ex:- copper, gold, water etc.
a.       Elements:- It consists of only one type of particles (i.e. atoms or molecules)
Ex:- H2, O2, Au, Ag.
b.      Compounds:- It consist of two or more atoms to give a molecule of compound
Ex:- CO2, NH3, H2O.

Properties of matter

1)      Physical properties:- Those properties which can be measured or observed.
2)      Chemical properties:– those properties in which chemical changes occurs.
Ex:– Acidity, Basicity, Combustibility etc.
SI :-  International System of units
=>  Established by 11th general conference on weight and measures.
=>  Si have seven fundamental units
=>  Other units are divided from seven fundamental units

Mass:- amount of matter in object
=>  1 kg = 1000 gram
Weight: -force on the object by gravity.
Volume:- (length)3
=>  1 L = 1000 ml, 1000 cm3 = 1dm3
Density:- Amount of mass per unit volume.
=>  SI unit :- Kgm-3
Temperature:- It is the measurement of cooling or warming.
Three scales
=>  0C (Degree Celsius)
=>  0F degree Fahrenheit)
=>  k (Kelvin)
=>  freezing point of water = 0 0C
=>  Boiling point of water = 100 0C
Relationship
Or,
k = 0C + 273.15
Precision:- Closeness of various measurement for same quantity.
Accuracy:- It is the agreement of a particular value to the true value of the result.
Significant figure:- The meaningful digits which are known with certainty.

11 Scientists and their Brilliant Inventions

Above video is video of 11 Scientists and their Brilliant Inventions. You can also see more videos on famous scientists and their inventions at our YouTube channel Chemistry Notes Info . List of famous scientists and their inventions Archimedes TheRead More…

Pharmaceutical Manufacturing Abbreviations

Abbreviations used in Pharmaceutical Manufacturing As we know pharmaceutical manufacturing products i.e. medicines, life saving drugs have very high importance in our life. Today we learn about various abbreviations used in pharmaceutical manufacturing process steps or simply in pharmaceutical manufacturing companies.Read More…

Chemistry Tutor Chemistry Notes Info at new Web Address

Welcome to new Chemistry Notes Info website Welcome Friends… Your chemistry tutor move from ChemistryNotesInfo.blogspot.com to ChemistryNotesInfo.com This is just a welcome post especially from your Chemistry Tutor i.e. Chemistry Notes Info. Dear friends finally now we move our ChemistryNotesInfoRead More…

Viscosity

Viscosity Do you know! “What is viscosity“. To understand about viscosity, we take example of some liquids like Honey and Water. As we know honey is thicker than water. So honey flow with very slow speed on floor than water,Read More…

General Knowledge Questions App

General Knowledge Questions App General Knowledge Questions Free General Knowledge Questions App – This app contains General Knowledge Questions of Samanya Gyan in Hindi and Samanya Budhi in Hindi.  General Knowledge Questions App is a Hindi GK app. This GKRead More…