As tempratur incress-.which one is right
a) Osmotic presure & vapour presure incres
b] Osmotic presuse decrese but vapur presur
incresses
d] Osmotic presuse is increases but
vapours presure
decreases
cJosmotic presure evapour presure dexressed
Answers
Answer:
As temperature increases,
option (A) osmotic pressure increases, vapour pressure increases
Explanation:
Osmotic pressure is defined as the minimum external pressure to be applied in order to prevent osmosis or to prevent the inward flow of solvent through a semi-permeable membrane
It is denoted by the greek letter π
As temperature increase, particles gains more kinetic energy hence, there we have to apply more pressure in order to resist the kinetic energy of the particles
Therefore, as temperature increases, osmotic pressure also increases
or
We know that,
Thus, π ∝ T
Vapour pressure is defined as the pressure exerted by a vapour when it is in thermal equilibrium with its condensed phase (can be liquid or solid as solids can also sublime into gases)
When we increase the temperature, more amount of solid or liquid phase is converted into the vapour phase
As more and more vapour is formed, it exerts more pressure that is, the vapour pressure increases
Hence, as temperature increases the vapour pressure increases