Gas law check (Gay-Lussac/Amontons law): judge the statement Statement: “For a perfect gas at constant volume, p/T = constant.” Choose whether the statement is correct or incorrect.
Mechanical Engineering
Thermodynamics
Difficulty: Easy
Choose an option
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AAgree (the statement is correct)
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BDisagree (the statement is incorrect)
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CTrue only at very low pressures
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DTrue only for monatomic gases
Answer
Correct Answer: Agree (the statement is correct)
Explanation
Concept/Approach
- From the ideal gas equation pV = nRT, with V and n constant, p ∝ T ⇒ p/T = constant.
Final AnswerAgree — at constant volume, pressure is directly proportional to temperature.