MSc Chemistry (Organic And Analytical) SEM I 2023 2024 Feb 2024 PHYSICAL CHEMISTRY I Question Paper - Mumbai University | munotes

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1. Q2 Figure to the right indicates full marks
2. Q3 Use of non — programmable scientific calculator is allowed Atomic mass of H=1,C =12,N= 14, = 32, Cl
3. Q1 Attempt any two of the following:
4. Q1 Derive the following Maxwell equation. 5 marks
   • ii) Calculate pyr gas at 373 K and 1.01235 X pa taking 05 and 3.15 X Given R = 0.0821 Cal ili) Define entropy. Write the expression for entropy change in the following 05
   • iv) State the third law of thermodynamics. How will you determine the 05 absolute entropy of a liquid using third law of thermodynamics
5. Q2 Attempt any two of the following:
   • i) Set up a Schrodinger wave equation for a particle in one dimensional box and obtain a normalised wave function for it li) State the postulates of Quantum Mechanics ili) | Determine the degeneracy of the levels
   • iv) Derive the Hermite differential from the relation
6. Q3 Attempt any two of the following:
7. Q1 Explain the kinetics of free radical polymerization. 5 marks
   • iii) Write the reaction mechanism for the decomposition of acetaldehyde 05 and using steady state principle show that =
   • iv) of formation of C in the reaction, 05 State the rate of reaction and the rates of formation or consumption of A,
8. Q4 Attempt any two of the following:
9. Q1 a) Explain Wein effect for the conductance of strong electrolytes. 2 marks
   • b) Calculate mean ionic activity coefficient of 0.05m in 03 aqueous solution at 298K. (Given: A = 0.509 at 298 K)
   • ii) With the help of diagram explain construction and working of Alkaline 05 fuel cell. Also write one advantage of fuel cell over conventional cell ili) a) Write a note on the electrochemical enzyme — catalysed oxidation of 03
   • b) Calculate the resting membrane potential for the following: 02 (Given that — at 298K = 61)
   • iv) a) What is ion atmosphere? Explain the relaxation effect for the 03 conductance of strong electrolytes
   • b) Draw well labelled diagram and write one application of Molten 02
10. Q5 Attempt any five of the following:
11. Q1 Explain the term residual entropy. 2 marks
    • ii) Explain exact differential equation. 02 A =<, and f(x)=cos(2x) then show that f(x)=cos(2x) is an eigen 02 function of operator its eigen value
    • iv) Define a) Commutative Operator b) Hamiltonian Operator 02
    • v) In the following reaction scheme, write the rate equation for the removal 02 of species C and D in differential form
    • vi) any two explosion limits of non — stationary chain reaction. 02
    • vii) Write Debye-Huckel-Onsager equation and briefly explain its validity for 02 Write two functions of cell membrane. 02

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