What is effect of temperature on vapour pressure ? Explain with CLASIUS CLAPERON equation.

Factors affecting vapour pressure:

(A) Temperature:.

(1) The temperature at which the vapour pressure of the liquid becomes equal to the atmospheric pressure is called its boiling point.

(2) Vapour pressure is directly proportional to theTemperature so that on increasing temperature the rate of evaporation increases and rate of condensation decreases and hence vapour pressure increases.

(3) The dependence of vapour pressure and temperature is given by CLASIUS CLAPERON equation.

(4) Vapour pressure of a particular liquid system is only the function of temperature only. It is independent from all other 

What is vapour pressure and What is effect of temperature on vapour pressure ?

VAPOUR PRESSURE:

(1) If a sample of water in its liquid phase is placed in an empty container, some of it will vaporize to form gaseous of water. This change is called evaporation.

(2) The pressure exerted by the vapour (molecules in the vapour phase) over the surface of the liquid at the equilibrium at given temperature is called the vapour pressure of the liquid.

OR

(3) It is the pressure exerted by the vapour when vapours are equilibrium with the liquid.

(4) The pressure exerted by vapours is called unsaturated vapour pressure or partial vapour at non equilibrium condition. 

Factors affecting vapour pressure:

(A) Temperature:.

(1) The temperature at which the vapour pressure of the liquid becomes equal to the atmospheric pressure is called its boiling point.

(2) Vapour pressure is directly proportional to theTemperature so that on increasing temperature the rate of evaporation increases and rate of condensation decreases and hence vapour pressure 

increases.

(3) The dependence of vapour pressure and temperature is given by CLASIUS CLAPERON equation.

(4) Vapour pressure of a particular liquid system is only the function of temperature only. It is independent from all other factors like surface area, amount of liquid, available space etc.

What are the Important structure information of Diamond?

Lattice of Diamond is ZnS type structure.

(1) C- form FCC (4-atom)

(2) C- atoms present at the 

Alternative tetrahedral voids (4-atoms)

(3) Total Number of one lattice unit is eight(8) hence molecular formula of diamond is (C8)

(4) Number of C-C bond in lattice cell is = 4×4= 16

(5) Number of C-C bond per carbon atom is 16/8=2

(6) the distance between two Carbon atom is d_C-C = a√3/4

(7) PE = π√3/10= 0.34 or 34%

(8) Voids = 66 % 

Only those atoms which form four covalent bond produce a repeated 3D structure using only covalent bonds i.g. diamond structure the latter is based  on of a face centred cubic lattice where four out of eight tetrahedral voids are occupied by canon atoms. Every atoms in this structure is surrounded tetrahedrally by four other. No discrete molecule can be dicemed in diamond .the entire crystal is giant molecule a unit cell of which is shown as below.

Germanium, silicon and grey tin also crystallize in the same way as diamond.

Why are bridge head carbocations unstable?

According to Bredt's rule a bridgehead carbon atom of bicyclo compound cannot be sp2 hybridised or in other word a bridgehead carbon atom cannot be form double bond. unless the ring that contains at least eight atoms.

How does leaching of aluminium ore take place by Serpeck's process?

Serpeck's Process: This process is applied to the bauxite ore containing Silica (White bauxite SiO₂) as major impurity.

 NOTE:Silicone Volatile at this temperature and removed easily.