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Questions and Answers
In an adiabatic process, which of the following statements is always true?
In an adiabatic process, which of the following statements is always true?
- The change in internal energy is zero.
- The work done by the system is zero.
- The temperature of the system remains constant.
- The heat transfer between the system and its surroundings is zero. (correct)
A gas performs 500 J of work in an adiabatic container. What is the change in the internal energy of the gas?
A gas performs 500 J of work in an adiabatic container. What is the change in the internal energy of the gas?
- +1000 J
- 0 J
- +500 J
- -500 J (correct)
If the internal energy of a system decreases during an adiabatic process, what can be inferred about the temperature of the system?
If the internal energy of a system decreases during an adiabatic process, what can be inferred about the temperature of the system?
- The temperature increases.
- The temperature decreases. (correct)
- The change in temperature cannot be determined.
- The temperature remains constant.
Four moles of neon gas undergo an adiabatic process with a temperature change from 500K to 300K. Given that $C_v = 12.47 \frac{J}{mol*K}$, what is the change in internal energy ($\Delta U$)?
Four moles of neon gas undergo an adiabatic process with a temperature change from 500K to 300K. Given that $C_v = 12.47 \frac{J}{mol*K}$, what is the change in internal energy ($\Delta U$)?
In the previous question, where the internal energy change of neon gas was calculated as -9976 J, how much work was performed?
In the previous question, where the internal energy change of neon gas was calculated as -9976 J, how much work was performed?
Nitrogen gas (a diatomic gas with $C_v = 20.79 \frac{J}{mol*K}$) undergoes adiabatic expansion. If the initial pressure and volume are $20 \times 10^5 Pa$ and $0.02 m^3$, and the final pressure and volume are $2 \times 10^5 Pa$ and $0.08 m^3$, what is the approximate amount of work done by the gas?
Nitrogen gas (a diatomic gas with $C_v = 20.79 \frac{J}{mol*K}$) undergoes adiabatic expansion. If the initial pressure and volume are $20 \times 10^5 Pa$ and $0.02 m^3$, and the final pressure and volume are $2 \times 10^5 Pa$ and $0.08 m^3$, what is the approximate amount of work done by the gas?
Given the adiabatic expansion of Nitrogen gas in the previous question, where the work done by the gas was calculated as 60,000 J, what is the change in its internal energy?
Given the adiabatic expansion of Nitrogen gas in the previous question, where the work done by the gas was calculated as 60,000 J, what is the change in its internal energy?
Air is compressed adiabatically from $0.10 m^3$ at $1 \times 10^5 Pa$ to $0.01 m^3$ at $40 \times 10^5 Pa$. Given $\gamma = 1.4$, calculate the approximate work done on the gas.
Air is compressed adiabatically from $0.10 m^3$ at $1 \times 10^5 Pa$ to $0.01 m^3$ at $40 \times 10^5 Pa$. Given $\gamma = 1.4$, calculate the approximate work done on the gas.
Following the adiabatic compression of air in the previous question, where the work done on the gas was calculated as -75,000 J, determine the change in the internal energy of the air.
Following the adiabatic compression of air in the previous question, where the work done on the gas was calculated as -75,000 J, determine the change in the internal energy of the air.
Which scenario exemplifies an adiabatic process most accurately?
Which scenario exemplifies an adiabatic process most accurately?
Flashcards
Adiabatic Process
Adiabatic Process
A process where no heat is transferred into or out of the system; Q = 0.
Change in Internal Energy Formula
Change in Internal Energy Formula
The change in a system's internal energy equals the heat added to the system minus the work done by the system: ΔU = Q - W.
Adiabatic Expansion and Temperature
Adiabatic Expansion and Temperature
In an adiabatic process, if work is done by the gas (expansion), the internal energy decreases, leading to a temperature decrease.
Cv for Monoatomic Gas
Cv for Monoatomic Gas
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Adiabatic ΔU and Work
Adiabatic ΔU and Work
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Cv for Diatomic Gas
Cv for Diatomic Gas
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Work Formula for Adiabatic Process
Work Formula for Adiabatic Process
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Sign Convention for Work (Thermodynamics)
Sign Convention for Work (Thermodynamics)
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Gamma for Air
Gamma for Air
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