JNTU
JNTU B.Tech II THERMODYNAMICS AND KINETICS Previous Question Paper (November/December - 2017 - R16)
Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit.
Part A
Define the concept of system.
Answer
A system is a specific portion of the universe chosen for thermodynamic study, separated from its surroundings by a real or imaginary boundary.
What are the extensive properties of a system?
Answer
Extensive properties are physical properties of a system that depend on the total quantity of matter present. Examples include mass, volume, total internal energy, and enthalpy. These properties are additive in nature.
What is mean by adiabatic process?
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State first law of thermodynamics.
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What is irreversible process?
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State the third law of thermodynamics.
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Define the Helmholtz energy change.
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What are the thermodynamics functions?
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What is molecularity and order of reaction?
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Explain collision theory.
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Part B
Explain the specific heats at constant volume and constant pressure.
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Differentiate between reversible and irreversible processes with examples.
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What are the thermodynamic variables? Explain in detail.
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Differentiate between homogenous and heterogeneous system.
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Write short notes on isothermal and adiabatic process. Give examples.
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Prove that the enthalpy change during a constant-pressure process is equal to the heat admitted to or withdrawn from the system during the process.
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Develop the relationship between the pressure and the volume of an ideal gas undergoing a reversible adiabatic process.
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Explain the concept of heat capacity.
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Define and explain the thermal efficiency of a heat engine cycle. Can this be 100%? Discuss.
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When entropy change is considered positive or negative as per the usual Convention? Explain.
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Explain the causes for the entropy increase.
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Explain the applications of third law of thermodynamics.
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Derive Gibb’s-Helmholtz equation and discuss their applicability.
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Explain the meaning of thermodynamically possible process.
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Explain the effect of temperature and pressure on equilibrium constant.
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Explain the concept of fugacity.
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Why don’t all the collisions be reactant molecules lead to chemical reactions? Explain.
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Explain the zero order reactions.
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Kinetics of chemical processes
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Catalysis in chemical reactions.
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