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Questions and Answers
What happens to the temperature in an isothermal process?
What happens to the temperature in an isothermal process?
- It fluctuates
- It increases
- It remains constant (correct)
- It decreases
How does the internal energy of the gas change in an isothermal process?
How does the internal energy of the gas change in an isothermal process?
- It increases
- It decreases
- It does not change (correct)
- It fluctuates
What shape is the isothermal line on a P-V diagram?
What shape is the isothermal line on a P-V diagram?
- Straight line
- Parabola
- Hyperbola (correct)
- Circle
How does the heat transfer between the system and its surroundings occur in an isothermal process?
How does the heat transfer between the system and its surroundings occur in an isothermal process?
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Study Notes
Isothermal Process
- In an isothermal process, the temperature remains constant.
- The internal energy of the gas remains constant, as the temperature is constant and there is no change in the kinetic energy of the gas molecules.
- On a P-V diagram, an isothermal process is represented by a hyperbola (curved line), as the product of pressure and volume is constant.
- Heat transfer occurs between the system and its surroundings in an isothermal process, with heat being absorbed or released to maintain the constant temperature.
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