\( \mathrm{P} \) WV components can be altered by changing the press...
0\( \mathrm{P} \)
WV
components can be altered by changing the pressure
to be decreased proportionately. The total number of
equilibirum will shift in the direction in which there is
decrease in number of moles i.e, towards the direction in which there can be decrease in pressure. Effect of pressure on melting point : There ars two
Effect of pressure on melting point : There are two types of solids :
(a) Solids whose volume decreases on melting, e.g. ice, diamond, carborundum, magnesium nitride and
qolid (higher volume) \( \rightleftharpoons \) Liquid (lower volume)
The process of melting is facil thus melting point is lowered. (b) Solids whose solume increas
(b) Solids whose
Solid (lower volume)
In this case the process of melting become difficult
at high pressure; thus melting point becomes high. (c) Solubility of substanees : When solid substance
are dissolved in water, either heat is evolved
\( \mathrm{KCl}+\mathrm{aq} \rightleftharpoons \mathrm{KCl}(\mathrm{aq}) \) - heat
In such cases, solubility increase with incr
this is dissolved, heat is evolved.
\( \mathrm{KOH}+\mathrm{aq} \rightleftharpoons \mathrm{KOH}(\mathrm{aq})+ \) heat In such cases, solubility decrease with increase in
temperature. (d) Solubility of gases in liquids : When a gas dissolves in liquid, there is decrease in volume. Thus.
issolves in liquid, there is decrease in volume. Thus, ACtivate WIS
increase of pressure will favour the dissolution of gas in liquid.
Agas ' \( X \) ' when dissolved in water heat is evolved. Then
activate Windows.
(A) Low pressure, high temperature
(B) Low pressure, low temperature (C) high pressure, high temperature (D) high pressure. low temperature
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