.

Question 1

‘Like dissolves ________’

Answer 1

Like

Question 2

[Effect of Temperature on Solid in Liquid] When solubility increase as temp. increases the dissolution is________

Answer 2

Endothermic
Example: KCl, NaCl, NaNO3

Question 3

[Effect of Temperature on Solid in Liquid] When solubility decrease as temp. increases the dissolution is________

Answer 3

Exothermic
Example: Na2CO3.H2O, Cerium Sulphate (Ce(SO4)3)

Question 4

[Effect of Temperature on Solid in Liquid] Why does solubility does not continuously increase or decrease as temp. increases?

Answer 4

Because polymorphic/hydrated form changes to another

Question 5

What is the effect of Pressure on solid in liquid solution?

Answer 5

no effect

Question 6

[Gas in Liquid] Factor which affect the solubility of H2, He, N2 in H2O.

Answer 6

have small size therefore require less energy to vibrate.

Question 7

[Effect of temperature Gas in Liquid] Dissolution if Gas in liquid is _______

Answer 7

Exothermic

Question 8

[Effect of temperature Gas in Liquid] Solubility of some inert gases and H2 _____________ with increase in temp.

Answer 8

increases

Question 9

[Effect of Pressure Gas in Liquid] State Henry’s Law

Answer 9

The partial pressure applied by any gas on a liquid surface is directly proportional to itsmole fractionpresent in a liquid solvent.
P= K_HX

Question 10

[Effect of Pressure Gas in Liquid] Relation between Henry’s constant and solubility.

Answer 10

Solubility ∝ 1/ K_H

Question 11

[Effect of Pressure Gas in Liquid] Unit of K_H is

Answer 11

Same as Pressure

Question 12

[Effect of Pressure Gas in Liquid] Relation between Henry’s constant and Temperature.

Answer 12

Temp ∝ K_H

Question 13

[Effect of Pressure Gas in Liquid] Conditon when Henry’s law is followed.

Answer 13

Pressure and Temperature is not too high.
Gas should not chemically react with solvent or not dissociate.

Question 14

[Effect of Pressure Gas in Liquid] Gas responsible for Bends.

Answer 14

N2

Question 15

[Effect of Pressure Gas in Liquid] Composition of gas in diver’s cylinder.

Answer 15

56.2% N₂
11.7% He
32.1% O₂

Question 16

Vapour pressure does and does not depend on
1. Amount of Liquid
2. Temp.
3. Nature of Liquid
4. Shape and size of vessel

Answer 16

Depends on 1. and 4
Does not depend on 2 and 3

Question 17

Relation between inter molecular forces of attraction in liquid and vapour pressure.

Answer 17

Inter molecular forces of attraction in liquid ∝ 1/vapour pressure.

Question 18

Clauius Clapeyron Equation

Answer 18

Log(P₂/ P₁) = ΔH_V/2.303R (1/T₁ - 1/T₂ )

Question 19

Standard Boiling Point

Answer 19

P_ext = 1 bar

Question 20

Normal Boiling Point

Answer 20

P_ext = 1 atm

Question 21

State Raoult’s Law

Answer 21

The paritial V.P. of each component of a solution at constant temperature is directly proportional to its mole fraction
P_A = P_A^o X_A

Question 22

Graph of Raoult’s Law when B is more Volatile

Answer 22

https://www.google.com/url?sa=i&url=https%3A%2F%2Funacademy.com%2Fcontent%2Fupsc%2Fstudy-material%2Fchemistry%2Fwhat-is-raoults-law%2F&psig=AOvVaw1O_gglteV22PaG-a0hzjcw&ust=1712981636143000&source=images&cd=vfe&opi=89978449&ved=0CBIQjRxqFwoTCLCmvIPou4UDFQAAAAAdAAAAABAE

Question 23

Dalton’s Law Equation

Answer 23

P_A = P_T Y_A

Question 24

Resulting equation of Dalton and Raoult’s Law.

Answer 24

Y_A/ P_A^o + Y_B/ P_B^o = 1/ P_T