STATES OF MATTER
MATTER –
(Defined by IMF = Keeps particle
together.
Thermal energy = Keeps particles apart.)
Solid Liquid Gas
IMF>>>T.E Intermediate T.E>>>IMF
(not in syllabus) Fluids (in physics) Gaseous state
Solutions (done) [Not much in
Syllabus]
1.Gaseous state:
T.E >>> IMF
Shape and volume not fixed.
Gases are of two types:
1.Real gases- Not follow PV=n RT
2.Ideal gases- Follows PV= n RT
Pressure- ATM
Bar
Torr
Pascal = Nm-2
, mm of Hg
1 ATM = 760 mm of Hg = 760 torr = 76 cm of Hg
= 1.031 bar = 1.031×105 Pascal or Nm-2
1 Bar = 0.987 ATM = 105 Pascals or Nm-2
Volume- S.I unit = m3
1 litre = 1000 ml = 1000 cm3 = 1000 cc = 1 dm3
=10-3 m3
Density- m/v
;1g/cm3=1000Kg/m3
S.I unit = Kg/m3
C.G.S unit = g/cm3 or g/cc
Temperature- (always in Kelvin scale)
°C + 273 = K
9 (°C) + 32 = °F
5
n = Number of moles = W (given mass)
M (molar mass)
= No. of particles = Given volume V
NA Molar volume V m
Molar volume (V m): Vol. of 1 mol of any gas at
constant T and P.
MATTER –
(Defined by IMF = Keeps particle
together.
Thermal energy = Keeps particles apart.)
Solid Liquid Gas
IMF>>>T.E Intermediate T.E>>>IMF
(not in syllabus) Fluids (in physics) Gaseous state
Solutions (done) [Not much in
Syllabus]
1.Gaseous state:
T.E >>> IMF
Shape and volume not fixed.
Gases are of two types:
1.Real gases- Not follow PV=n RT
2.Ideal gases- Follows PV= n RT
Pressure- ATM
Bar
Torr
Pascal = Nm-2
, mm of Hg
1 ATM = 760 mm of Hg = 760 torr = 76 cm of Hg
= 1.031 bar = 1.031×105 Pascal or Nm-2
1 Bar = 0.987 ATM = 105 Pascals or Nm-2
Volume- S.I unit = m3
1 litre = 1000 ml = 1000 cm3 = 1000 cc = 1 dm3
=10-3 m3
Density- m/v
;1g/cm3=1000Kg/m3
S.I unit = Kg/m3
C.G.S unit = g/cm3 or g/cc
Temperature- (always in Kelvin scale)
°C + 273 = K
9 (°C) + 32 = °F
5
n = Number of moles = W (given mass)
M (molar mass)
= No. of particles = Given volume V
NA Molar volume V m
Molar volume (V m): Vol. of 1 mol of any gas at
constant T and P.
