GTU BE 2019 Summer Question Papers || Gujarat Technological University
GUJARAT TECHNOLOGICAL UNIVERSITY
SEMESTER-VI(NEW) — EXAMINATION - SUMMER 2019
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Subject Code:2163508 Date:16/05/2019
Subject Name:Basics of Thermodynamics & Kinetics
Time:10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
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| MARKS | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Q.1 (a) | Define: Extensive property, intensive property and reversible process | 03 | ||||||||||||
| (b) | Explain phase rule with equation. | 04 | ||||||||||||
| (c) | Derive fundamental property relation equation for U, H, A and G. | 07 | ||||||||||||
| Q.2 (a) | Define modified Raoult’s law with equation. | 03 | ||||||||||||
| (b) | List out different methods for thermodynamic consistency test and explain any two in detail. | 04 | ||||||||||||
| (c) | Mixtures of n-Pentane (1) and n-Heptane (2) conform to ideal solution behaviour. The vapour pressures of pure components are adequately described by Antoine’s equation. Prepare P-x-y diagram at 70°C.
| 07 | ||||||||||||
| OR | ||||||||||||||
| (c) | Prepare P-X-Y diagram at temperature of 100 °C for a binary system Benzene(1) and Ethyl benzene(2). Assume that Raoult’s low is valid and use the following Antonie equation. InPr*=A-B/(T+C) --- Content provided by FirstRanker.com --- Where P1**in KPa and T is'in °C
| 07 | ||||||||||||
| Q.3 (a) | Explain Henry’s law. | 03 | ||||||||||||
| (b) | Explain limitations of chemical potential. | 04 | ||||||||||||
| (c) | Write different methods for determination of partial molar properties and explain any one in detail. | 07 | ||||||||||||
| OR | ||||||||||||||
| Q.3 (a) | Explain Lewis Randall rule. | 03 | ||||||||||||
| (b) | Explain maximum boiling azeotrope with example. | 04 | ||||||||||||
| (c) | Derive Gibbs Duhum equation. | 07 | ||||||||||||
| Q.4 (a) | Write a short note of equilibrium constant with equation. | 03 | ||||||||||||
| (b) | Derive ?G°=-RT lnK | 04 | ||||||||||||
| (c) | Explain criteria of chemical reaction equilibrium. | 07 | ||||||||||||
| OR | ||||||||||||||
| Q.4 (a) | Define: Excess properties and Residual properties | 03 | ||||||||||||
| (b) | Explain effect of temperature on Equilibrium constant. | 04 | ||||||||||||
| (c) | Write the steps for calculating DEW P and DEW T using modified Raoult’s law. | 07 | ||||||||||||
| Q.5 (a) | The activation energy of a bimolecular reaction is 83.14 kJ/mol. How much faster is this reaction takes place at 500 K than at 400 K? | 03 | ||||||||||||
| (b) | Write difference between order of reaction and molecularity of reaction. | 04 | ||||||||||||
| (c) | Derive the rate equation for constant volume batch reactor for second order reaction in terms of conversion. | 07 | ||||||||||||
| OR | ||||||||||||||
| Q.5 (a) | Define: Catalyst deactivation and different types of catalyst deactivation. | 03 | ||||||||||||
| (b) | Write difference between integral and differential method of rate analysis. | 04 | ||||||||||||
| (c) | Write a short note on Transition state theory. | 07 |
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