Download PTU B.Sc-BT 2020 March 2nd Sem 75872 Physical Chemistry Question Paper

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Roll No.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  &instruction to candidates :

1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.

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2. SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.

SECTION-A

1) Write briefly :

1. What are extensive properties?

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2. What is the degree of freedom?
3. Explain the specific conductance:
4. What are state variables?
5. What is lever rule?
6. What is the effect of temperature on specific conductance?

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7. Define instantaneous rate of reaction.
8. What is eutectic point?
9. Explain the independable variables.
10. What is the order?

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SECTION-B

2) What is the shortcoming of first law of thermodynamics and second law of thermodynamics?

3) Explain the Raoult’s law.

4) Explain the parallel reactions.

5) What is the Buffer solution?

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6) What is the Hess’s law of heat of summation?

SECTION-C

7) Derive the Gibb’s Helmholtz equation.

8) Derive the rate equation of second order reaction.

9) Explain the phase diagram of KI system.

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NOTE : Disclosure of identity by writing mobile number or making passing request on any page of Answer sheet will lead to UMC case against the Student.