Home
Class 12
CHEMISTRY
van't Hoff equation is...

van't Hoff equation is

Text Solution

Verified by Experts

Combining van't Hoff Boyle's and Charle's laws van't Hoff reduced the following equation.
`pi prop(T)/(V)="Constant (K)"`
`piV=KT`
K is called general solution constant. The equation is called van't Hoff general solution equation. It is similar to (PV = RT) van't Hoff further proved that the value of K is same as R. The gas constant hence,
`piV=RT`
`pi`= Osmotic pressure
V = Volume of solution containing 1 mole of solute
R = Gas constant equal to `8.314 "J mol"^(-1)K^(-1)` or 0.082 L atm `"mol"^(-1)K^(-1)` ltbtgt T = Absolute temperature
If V is the volume of solution containing n moles of solute, then,
`piV=nRT`
`or" "pi=(n)/(V)RT" since "(C=(n)/(V))`
`or" "pi=CRT`
Promotional Banner

Topper's Solved these Questions

  • FEBRUARY 2019

    GURUKUL PUBLICATION - MAHARASHTRA PREVIOUS YEAR PAPERS|Exercise SECTION - C|16 Videos
  • FEBRUARY 2019

    GURUKUL PUBLICATION - MAHARASHTRA PREVIOUS YEAR PAPERS|Exercise SECTION - D|21 Videos
  • FEBRUARY 2019

    GURUKUL PUBLICATION - MAHARASHTRA PREVIOUS YEAR PAPERS|Exercise SECTION - D|21 Videos
  • FEBRUARY 2018

    GURUKUL PUBLICATION - MAHARASHTRA PREVIOUS YEAR PAPERS|Exercise CHEMISTRY (SECTION -II)|24 Videos
  • JULY 2016

    GURUKUL PUBLICATION - MAHARASHTRA PREVIOUS YEAR PAPERS|Exercise SECTION I|41 Videos

Similar Questions

Explore conceptually related problems

Variation of K with temperature as given by van't Hoff equation can be written as

According to van 't Hoff equation, K varies with temperature as:

Which facts are true when we use van't Hoff equation PV=CST for osmotic pressure P of dilute solutions ?

Variation of equilibrium constan K with temperature is given by van't Hoff equation InK=(Delta_(r)S^(@))/R-(Delta_(r)H^(@))/(RT) for this equation, (Delta_(r)H^(@)) can be evaluated if equilibrium constans K_(1) and K_(2) at two temperature T_(1) and T_(2) are known. log(K_(2)/K_(1))=(Delta_(r)H^(@))/(2.303R)[1/T_(1)-1/T_(2)] Select the correct statement :

Variation of equilibrium constan K with temperature is given by van't Hoff equation InK=(Delta_(r)S^(@))/R-(Delta_(r)H^(@))/(RT) for this equation, (Delta_(r)H^(@)) can be evaluated if equilibrium constans K_(1) and K_(2) at two temperature T_(1) and T_(2) are known. log(K_(2)/K_(1))=(Delta_(r)H^(@))/(2.303R)[1/T_(1)-1/T_(2)] For an isomerization X(g)hArrY(g) the temperature dependency of equilibrium cohnstant is given by : lnK=2-(1000)/T The value of Delta_(r)S^(@) at 300 K is :