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A process, in which the temperature of the working substance remains constant during itsexpansion or compression, is called
- a)isothermal process
- b)hyperbolic process
- c)adiabatic process
- d)polytropic proce
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
A process, in which the temperature of the working substance remains c...
Iso- some (constant) where the temperature is constant the process is known as isothermal process.
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A process, in which the temperature of the working substance remains c...
Understanding Isothermal Processes
An isothermal process is a thermodynamic process in which the temperature of the working substance remains constant throughout the entire expansion or compression. This means that any heat added to the system is fully converted into work done by the system, or vice versa.
Key Characteristics of Isothermal Processes:
- Constant Temperature: The defining feature of an isothermal process is that the temperature (T) of the working substance does not change, regardless of the changes in pressure or volume.
- Heat Exchange: Since temperature remains constant, heat must flow into or out of the system to maintain equilibrium. In an isothermal expansion, the system absorbs heat to do work, while in an isothermal compression, it releases heat.
- Ideal Gas Behavior: For an ideal gas, an isothermal process can be described by Boyle's Law, which states that the product of pressure (P) and volume (V) is constant (PV = constant) at a constant temperature.
Applications of Isothermal Processes:
- Heat Engines: In many heat engines, isothermal processes are crucial for maximizing efficiency. For example, the isothermal expansion phase in a Carnot cycle allows for maximum work extraction from the heat supplied.
- Refrigeration: Isothermal processes are also utilized in refrigeration cycles, where the absorption of heat at constant temperature plays a vital role in maintaining low temperatures.
Conclusion:
Thus, option 'A' is correct because an isothermal process is characterized by a constant temperature during the expansion or compression of the working substance, making it a fundamental concept in thermodynamics and mechanical engineering.
An isothermal process is a thermodynamic process in which the temperature of the working substance remains constant throughout the entire expansion or compression. This means that any heat added to the system is fully converted into work done by the system, or vice versa.
Key Characteristics of Isothermal Processes:
- Constant Temperature: The defining feature of an isothermal process is that the temperature (T) of the working substance does not change, regardless of the changes in pressure or volume.
- Heat Exchange: Since temperature remains constant, heat must flow into or out of the system to maintain equilibrium. In an isothermal expansion, the system absorbs heat to do work, while in an isothermal compression, it releases heat.
- Ideal Gas Behavior: For an ideal gas, an isothermal process can be described by Boyle's Law, which states that the product of pressure (P) and volume (V) is constant (PV = constant) at a constant temperature.
Applications of Isothermal Processes:
- Heat Engines: In many heat engines, isothermal processes are crucial for maximizing efficiency. For example, the isothermal expansion phase in a Carnot cycle allows for maximum work extraction from the heat supplied.
- Refrigeration: Isothermal processes are also utilized in refrigeration cycles, where the absorption of heat at constant temperature plays a vital role in maintaining low temperatures.
Conclusion:
Thus, option 'A' is correct because an isothermal process is characterized by a constant temperature during the expansion or compression of the working substance, making it a fundamental concept in thermodynamics and mechanical engineering.
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Community Answer
A process, in which the temperature of the working substance remains c...
Both a and b
a , because temperature remains constant.
b, because for isothermal process PV=Constant which will give us a rectangular hyperbola on PV plot.
a , because temperature remains constant.
b, because for isothermal process PV=Constant which will give us a rectangular hyperbola on PV plot.
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