मराठी

What type of azeotrope is formed by positive deviation from Raoult’s law?

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प्रश्न

What type of azeotrope is formed by positive deviation from Raoult’s law?

अति संक्षिप्त उत्तर
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उत्तर

Azeotropes exhibiting negative deviation from Raoult’s law form maximum boiling azeotropes at a specific composition.

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2014-2015 (March) Delhi Set 1

संबंधित प्रश्‍न

In non-ideal solution, what type of deviation shows the formation of maximum boiling azeotropes?


Calculate the mass of a non-volatile solute (molar mass 40 g mol−1) which should be dissolved in 114 g octane to reduce its vapour pressure to 80%.


What is meant by negative deviation from Raoult's law? Give an example. What is the sign of ∆mixH for negative deviation?


For the reaction :

\[\ce{2NO_{(g)} ⇌ N2_{(g)} + O2_{(g)}}\];

ΔH = -heat

K= 2.5 × 10at 298K

What will happen to the concentration of Nif :

(1) Temperature is decreased to 273 K.

(2) The pressure is reduced


Match the following:

(i) Colligative property (a) Polysaccharide
(ii) Nicol prism (b) Osmotic pressure
(iii) Activation energy (c) Aldol condensation
(iv) Starch (d) Polarimeter
(v) Acetaldehyde (e) Arrhenius equation

At equilibrium the rate of dissolution of a solid solute in a volatile liquid solvent is ______.


On the basis of information given below mark the correct option.

(A) In bromoethane and chloroethane mixture intermolecular interactions of A–A and B–B type are nearly same as A–B type interactions.

(B) In ethanol and acetone mixture A–A or B–B type intermolecular interactions are stronger than A–B type interactions.

(C) In chloroform and acetone mixture A–A or B–B type intermolecular interactions are weaker than A–B type interactions.


On the basis of information given below mark the correct option.
On adding acetone to methanol some of the hydrogen bonds between methanol molecules break.


Using Raoult’s law explain how the total vapour pressure over the solution is related to mole fraction of components in the following solutions.

\[\ce{NaCl(s) and H2O(l)}\]


If the weight of the non-volatile solute urea (NH2–CO–NH2) is to be dissolved in 100 g of water, in order to decrease the vapour-pressure of water by 25%, then the weight of the solute will be ______ g.


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