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Index: Thermodynamics | Chemistry Class 11 - NEET PDF Download

1. Thermodynamic Terms

2. Applications

3. Measurement of Del U & Del H: Calorimetry

4. Enthalpy Change

5. Enthalpies for Different Types of Reactions

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6. Spontaneity

7. Gibbs Energy Change & Equilibrium

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8. Previous Year Tests

9. General

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Index: Thermodynamics
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10. NCERT Book & Solutions

11. Tests of the Chapter: Thermodynamics

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FAQs on Index: Thermodynamics - Chemistry Class 11 - NEET

1. What is thermodynamics?
Ans. Thermodynamics is the branch of science that deals with the study of energy and its transformations, particularly in relation to heat and work. It encompasses the principles and laws governing the behavior of energy and its exchange between different systems, such as heat engines or refrigeration systems.
2. What are the laws of thermodynamics?
Ans. The laws of thermodynamics are fundamental principles that govern the behavior of energy in various systems. They include: - The first law, also known as the law of energy conservation, states that energy cannot be created or destroyed, only transformed from one form to another. - The second law states that the entropy of an isolated system always tends to increase over time, indicating the natural direction of energy flow. - The third law states that it is impossible to reach absolute zero temperature, as the entropy of a perfect crystalline substance approaches zero as the temperature approaches absolute zero.
3. How is thermodynamics applied in engineering?
Ans. Thermodynamics plays a crucial role in engineering, especially in the design and analysis of energy systems. It is used to optimize the efficiency of engines, power plants, and refrigeration systems by considering factors such as heat transfer, energy conversion, and system performance. Engineers apply thermodynamic principles to improve energy utilization, reduce waste, and enhance overall system performance.
4. What is the difference between heat and temperature in thermodynamics?
Ans. Heat and temperature are related but distinct concepts in thermodynamics. Heat refers to the transfer of energy between two objects due to a temperature difference. It is a form of energy transfer associated with the kinetic energy of atoms and molecules. On the other hand, temperature is a measure of the average kinetic energy of the particles in a substance. It quantifies the hotness or coldness of an object and determines the direction and rate of heat transfer.
5. Can thermodynamics explain why some processes are irreversible?
Ans. Yes, thermodynamics can explain why certain processes are irreversible. According to the second law of thermodynamics, the total entropy of an isolated system always increases or remains constant in a reversible process, but it increases in an irreversible process. This increase in entropy is associated with the dissipation of energy, the generation of waste heat, and the degradation of useful energy. Irreversible processes are characterized by an increase in entropy and a decrease in the availability of useful energy, making them unable to be reversed without external intervention.
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