Mechanical Engineering Exam > Mechanical Engineering Questions > At the triple point of a pure substance, the ...
Start Learning for Free
At the triple point of a pure substance, the number of degrees of freedom is
- a)0
- b)1
- c)2
- d)3
Correct answer is option 'A'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
At the triple point of a pure substance, the number of degrees of free...
Most Upvoted Answer
At the triple point of a pure substance, the number of degrees of free...
Understanding the Triple Point
The triple point of a pure substance is a unique condition where three phases coexist in thermodynamic equilibrium: solid, liquid, and gas. This phenomenon is critical in thermodynamics and helps define the substance's properties.
Degrees of Freedom Explained
In thermodynamics, the number of degrees of freedom refers to the number of independent variables that can be changed without violating the system's equilibrium. The Gibbs phase rule is instrumental in determining this:
- Formula: F = C - P + 2
- F = Degrees of freedom
- C = Number of components
- P = Number of phases
Application to Pure Substances
For a pure substance at its triple point:
- Components (C): 1 (since it's a single substance)
- Phases (P): 3 (solid, liquid, gas)
Using the formula:
F = 1 - 3 + 2 = 0
Conclusion: Zero Degrees of Freedom
At the triple point:
- Equilibrium: All three phases are in equilibrium, meaning that any change in one variable (like pressure or temperature) will affect the others.
- Implication: There are no independent variables that can be altered without disrupting this equilibrium.
Thus, the correct answer is indeed option 'A': the number of degrees of freedom at the triple point of a pure substance is 0. This highlights the unique stability and specific conditions required for a substance to exist simultaneously in all three states.
The triple point of a pure substance is a unique condition where three phases coexist in thermodynamic equilibrium: solid, liquid, and gas. This phenomenon is critical in thermodynamics and helps define the substance's properties.
Degrees of Freedom Explained
In thermodynamics, the number of degrees of freedom refers to the number of independent variables that can be changed without violating the system's equilibrium. The Gibbs phase rule is instrumental in determining this:
- Formula: F = C - P + 2
- F = Degrees of freedom
- C = Number of components
- P = Number of phases
Application to Pure Substances
For a pure substance at its triple point:
- Components (C): 1 (since it's a single substance)
- Phases (P): 3 (solid, liquid, gas)
Using the formula:
F = 1 - 3 + 2 = 0
Conclusion: Zero Degrees of Freedom
At the triple point:
- Equilibrium: All three phases are in equilibrium, meaning that any change in one variable (like pressure or temperature) will affect the others.
- Implication: There are no independent variables that can be altered without disrupting this equilibrium.
Thus, the correct answer is indeed option 'A': the number of degrees of freedom at the triple point of a pure substance is 0. This highlights the unique stability and specific conditions required for a substance to exist simultaneously in all three states.
Attention Mechanical Engineering Students!
To make sure you are not studying endlessly, EduRev has designed Mechanical Engineering study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Mechanical Engineering.
|
Explore Courses for Mechanical Engineering exam
|
|
Similar Mechanical Engineering Doubts
Top Courses for Mechanical EngineeringView all
At the triple point of a pure substance, the number of degrees of freedom isa)0b)1c)2d)3Correct answer is option 'A'. Can you explain this answer?
Question Description
At the triple point of a pure substance, the number of degrees of freedom isa)0b)1c)2d)3Correct answer is option 'A'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about At the triple point of a pure substance, the number of degrees of freedom isa)0b)1c)2d)3Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for At the triple point of a pure substance, the number of degrees of freedom isa)0b)1c)2d)3Correct answer is option 'A'. Can you explain this answer?.
At the triple point of a pure substance, the number of degrees of freedom isa)0b)1c)2d)3Correct answer is option 'A'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about At the triple point of a pure substance, the number of degrees of freedom isa)0b)1c)2d)3Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for At the triple point of a pure substance, the number of degrees of freedom isa)0b)1c)2d)3Correct answer is option 'A'. Can you explain this answer?.
Solutions for At the triple point of a pure substance, the number of degrees of freedom isa)0b)1c)2d)3Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Mechanical Engineering.
Download more important topics, notes, lectures and mock test series for Mechanical Engineering Exam by signing up for free.
Here you can find the meaning of At the triple point of a pure substance, the number of degrees of freedom isa)0b)1c)2d)3Correct answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
At the triple point of a pure substance, the number of degrees of freedom isa)0b)1c)2d)3Correct answer is option 'A'. Can you explain this answer?, a detailed solution for At the triple point of a pure substance, the number of degrees of freedom isa)0b)1c)2d)3Correct answer is option 'A'. Can you explain this answer? has been provided alongside types of At the triple point of a pure substance, the number of degrees of freedom isa)0b)1c)2d)3Correct answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice At the triple point of a pure substance, the number of degrees of freedom isa)0b)1c)2d)3Correct answer is option 'A'. Can you explain this answer? tests, examples and also practice Mechanical Engineering tests.
|
|
Explore Courses for Mechanical Engineering exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup