Question:
Which of the following is not a thermodynamic coordinate?
Which of the following is not a thermodynamic coordinate?
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Coordinates change; Constants don't.
Updated On: Apr 10, 2026
- Gas constant (R)
- Pressure (p)
- Volume (V)
- Temperature (T)
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The Correct Option is A
Solution and Explanation
Step 1: Definition
Thermodynamic coordinates are macroscopic variables that describe the state of a system, such as $P$, $V$, and $T$.
Step 2: Identification
Pressure ($p$), Volume ($V$), and Temperature ($T$) change as the state of the gas changes.
Step 3: Conclusion
The Universal Gas Constant ($R$) is a fixed constant ($8.314 \text{ J mol}^{-1} \text{ K}^{-1}$) and does not describe the specific state of a system.
Final Answer: (a)
Thermodynamic coordinates are macroscopic variables that describe the state of a system, such as $P$, $V$, and $T$.
Step 2: Identification
Pressure ($p$), Volume ($V$), and Temperature ($T$) change as the state of the gas changes.
Step 3: Conclusion
The Universal Gas Constant ($R$) is a fixed constant ($8.314 \text{ J mol}^{-1} \text{ K}^{-1}$) and does not describe the specific state of a system.
Final Answer: (a)
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