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Isothermal Process - Thermodynamics Video Lecture | Physical Chemistry

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FAQs on Isothermal Process - Thermodynamics Video Lecture - Physical Chemistry

1. What is an isothermal process in thermodynamics?
Ans. An isothermal process in thermodynamics refers to a process where the temperature of a system remains constant throughout the entire process. This means that there is no change in the internal energy of the system, as all the heat added to or removed from the system is used to maintain the constant temperature.
2. How does an isothermal process differ from an adiabatic process?
Ans. An isothermal process involves a constant temperature, while an adiabatic process involves no heat exchange with the surroundings. In an isothermal process, heat transfer occurs to maintain the constant temperature, whereas in an adiabatic process, there is no heat transfer, and the temperature may change.
3. Can an isothermal process occur in reality?
Ans. In theory, an isothermal process can occur if heat transfer is perfectly controlled and balanced. However, in reality, it is challenging to achieve a perfectly isothermal process due to heat losses and energy dissipation. Therefore, while isothermal processes can be approximated in some cases, they are not often seen exactly in real-world systems.
4. What is the significance of isothermal processes in practical applications?
Ans. Isothermal processes are significant in various practical applications, such as refrigeration systems and heat engines. In refrigeration systems, maintaining a constant temperature is crucial for efficient cooling. Similarly, in heat engines, isothermal processes play a role in optimizing the conversion of heat into work by ensuring the temperature remains constant during certain stages.
5. How can the first law of thermodynamics be applied to an isothermal process?
Ans. The first law of thermodynamics, which states that energy cannot be created or destroyed but can only change forms, can be applied to an isothermal process. Since the internal energy remains constant in an isothermal process, any heat added to or removed from the system is entirely converted into work or vice versa, without any change in the system's internal energy.
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