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B.Sc.-B.Ed. (Secondary) Examination, 2024
(Second Semester)
CHEMISTRY-DC-IV
Physical Chemistry-II
рдиреЛрдЯ : рд╕рднреА рдЦрдгреНрдбреЛрдВ рд╕реЗ рдкреНрд░рд╢реНрдиреЛрдВ рдХреЗ рдирд┐рд░реНрджреЗрд╢рд╛рдиреБрд╕рд╛рд░ рдЙрддреНрддрд░ рджреАрдЬрд┐рдПред
Attempt questions of all Sections as directed.
рдЦрдгреНрдб 'рдЕ'
Section A
(рдЕрддрд┐ рд▓рдШреБ рдЙрддреНрддрд░реАрдп рдкреНрд░рд╢реНрди)
(Very Short Answer Type Questions)
рдиреЛрдЯ: рд╕рднреА рдкреНрд░рд╢реНрдиреЛрдВ рдХреЗ рдЙрддреНрддрд░ рджреАрдЬрд┐рдПред Attempt all questions. 2├Ч5=10
рдЦрдгреНрдб 'рдм'
Section B
(рд▓рдШреБ рдЙрддреНрддрд░реАрдп рдкреНрд░рд╢реНрди)
(Short Answer Type Questions)
рдиреЛрдЯ: рд╕рднреА рдкреНрд░рд╢реНрдиреЛрдВ рдХреЗ рдЙрддреНрддрд░ рджреАрдЬрд┐рдПред Attempt all questions. 3├Ч5=15
Explain the Kirchhoff's equation.
Write a short note on Le Chatelier's principle.
What is elevation of boiling point ? How is it related to the degree dissociation and molecular weight of a solute ?
What is adsorption isotherms graph ? Discuss the Freundlich adsorption isotherms graph.
рдЦрдгреНрдб 'рд╕'
Section C
(рджреАрд░реНрдШ рдЙрддреНрддрд░реАрдп рдкреНрд░рд╢реНрди)
(Long Answer Type Questions)
рдиреЛрдЯ: рд╕рднреА рдкреНрд░рд╢реНрдиреЛрдВ рдХреЗ рдЙрддреНрддрд░ рджреАрдЬрд┐рдПред Attempt all questions. 7├Ч5=35
Write short notes on the following :
(a) Heat capacity at constant volume and at constant pressure
(b) Extensive and intensive properties.
Briefly explain the terms enthalpy of neutralization. Determine the amount of heat released when 0.75 mole of nitric acid is neutralised by 0.75 mole of sodium hydroxide.
Write short notes on the following :
(a) Entropy change in reversible and irreversible processes
(b) Second and third law of thermodynamics.
Explain the thermodynamic derivation of law of mass action.
Write short notes on the following :
(a) Effecting factors of chemical equilibrium
(b) Importance of Le Chatelier principle.
Write short notes on the following :
(a) Roult's Laws
(b) Henry's Law.
Write short notes on the following :
(a) Relative Lowering of Vapour Pressure
(b) Elevation of Boiling Points
(c) Depression of Freezing Point.
Write short notes on any three of the following :
(a) Optical and electrical properties of Colloids
(b) Emulsion and Gel
(c) Hardy-Schulze rule and Gold Number
(d) Sols and peptization.