GATE Exam > GATE Questions > The Clausius-clapeyron equation indicates tha...
Start Learning for Free
The Clausius-clapeyron equation indicates that the increase of pressure increases the melting point.
- a)In the case of all substances.
- b)In the case of substances which expand on solidification.
- c)In the case of substances which contract on solidification.
- d)In the case of substances which neither expand nor contract on solidification.
Correct answer is option 'C'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
The Clausius-clapeyron equation indicates that the increase of pressur...
Clausius-clapeyron equation is given as
⇒ If volume increases the pressure increases with T.
⇒ If volume increases the pressure increases with T.
Most Upvoted Answer
The Clausius-clapeyron equation indicates that the increase of pressur...
Explanation:
The Clausius-Clapeyron equation relates the pressure and temperature at which a substance undergoes a phase change. It is given by:
(dP/dT) = ΔHvap/TΔV
where dP/dT is the rate of change of pressure with respect to temperature, ΔHvap is the enthalpy of vaporization, T is the absolute temperature, and ΔV is the change in volume upon vaporization.
According to the equation, the increase in pressure leads to an increase in the melting point of a substance. However, this is not true for all substances. The effect of pressure on the melting point depends on the behavior of the substance upon solidification.
Substances which contract on solidification:
When a substance contracts on solidification, it means that the solid phase has a higher density than the liquid phase. In this case, an increase in pressure causes the molecules to pack more tightly in both the solid and liquid phases. This leads to a decrease in the volume change upon melting, ΔV, and a corresponding increase in the melting point. Examples of substances that contract on solidification include water, silicon, germanium, and gallium.
Substances which expand on solidification:
When a substance expands on solidification, it means that the solid phase has a lower density than the liquid phase. In this case, an increase in pressure causes the molecules to pack more tightly in the liquid phase, but less tightly in the solid phase. This leads to an increase in the volume change upon melting, ΔV, and a corresponding decrease in the melting point. Examples of substances that expand on solidification include bismuth, antimony, and graphite.
Substances which neither expand nor contract on solidification:
Some substances neither expand nor contract on solidification, meaning that the solid and liquid phases have the same density. In this case, the effect of pressure on the melting point is negligible. Examples of substances that neither expand nor contract on solidification include gold, silver, and copper.
Therefore, the correct answer is option C, which states that the increase in pressure increases the melting point of substances which contract on solidification.
The Clausius-Clapeyron equation relates the pressure and temperature at which a substance undergoes a phase change. It is given by:
(dP/dT) = ΔHvap/TΔV
where dP/dT is the rate of change of pressure with respect to temperature, ΔHvap is the enthalpy of vaporization, T is the absolute temperature, and ΔV is the change in volume upon vaporization.
According to the equation, the increase in pressure leads to an increase in the melting point of a substance. However, this is not true for all substances. The effect of pressure on the melting point depends on the behavior of the substance upon solidification.
Substances which contract on solidification:
When a substance contracts on solidification, it means that the solid phase has a higher density than the liquid phase. In this case, an increase in pressure causes the molecules to pack more tightly in both the solid and liquid phases. This leads to a decrease in the volume change upon melting, ΔV, and a corresponding increase in the melting point. Examples of substances that contract on solidification include water, silicon, germanium, and gallium.
Substances which expand on solidification:
When a substance expands on solidification, it means that the solid phase has a lower density than the liquid phase. In this case, an increase in pressure causes the molecules to pack more tightly in the liquid phase, but less tightly in the solid phase. This leads to an increase in the volume change upon melting, ΔV, and a corresponding decrease in the melting point. Examples of substances that expand on solidification include bismuth, antimony, and graphite.
Substances which neither expand nor contract on solidification:
Some substances neither expand nor contract on solidification, meaning that the solid and liquid phases have the same density. In this case, the effect of pressure on the melting point is negligible. Examples of substances that neither expand nor contract on solidification include gold, silver, and copper.
Therefore, the correct answer is option C, which states that the increase in pressure increases the melting point of substances which contract on solidification.
|
Explore Courses for GATE exam
|
|
Similar GATE Doubts
The Clausius-clapeyron equation indicates that the increase of pressure increases the melting point.a)In the case of all substances.b)In the case of substances which expand on solidification.c)In the case of substances which contract on solidification.d)In the case of substances which neither expand nor contract on solidification.Correct answer is option 'C'. Can you explain this answer?
Question Description
The Clausius-clapeyron equation indicates that the increase of pressure increases the melting point.a)In the case of all substances.b)In the case of substances which expand on solidification.c)In the case of substances which contract on solidification.d)In the case of substances which neither expand nor contract on solidification.Correct answer is option 'C'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about The Clausius-clapeyron equation indicates that the increase of pressure increases the melting point.a)In the case of all substances.b)In the case of substances which expand on solidification.c)In the case of substances which contract on solidification.d)In the case of substances which neither expand nor contract on solidification.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The Clausius-clapeyron equation indicates that the increase of pressure increases the melting point.a)In the case of all substances.b)In the case of substances which expand on solidification.c)In the case of substances which contract on solidification.d)In the case of substances which neither expand nor contract on solidification.Correct answer is option 'C'. Can you explain this answer?.
The Clausius-clapeyron equation indicates that the increase of pressure increases the melting point.a)In the case of all substances.b)In the case of substances which expand on solidification.c)In the case of substances which contract on solidification.d)In the case of substances which neither expand nor contract on solidification.Correct answer is option 'C'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about The Clausius-clapeyron equation indicates that the increase of pressure increases the melting point.a)In the case of all substances.b)In the case of substances which expand on solidification.c)In the case of substances which contract on solidification.d)In the case of substances which neither expand nor contract on solidification.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The Clausius-clapeyron equation indicates that the increase of pressure increases the melting point.a)In the case of all substances.b)In the case of substances which expand on solidification.c)In the case of substances which contract on solidification.d)In the case of substances which neither expand nor contract on solidification.Correct answer is option 'C'. Can you explain this answer?.
Solutions for The Clausius-clapeyron equation indicates that the increase of pressure increases the melting point.a)In the case of all substances.b)In the case of substances which expand on solidification.c)In the case of substances which contract on solidification.d)In the case of substances which neither expand nor contract on solidification.Correct answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for GATE.
Download more important topics, notes, lectures and mock test series for GATE Exam by signing up for free.
Here you can find the meaning of The Clausius-clapeyron equation indicates that the increase of pressure increases the melting point.a)In the case of all substances.b)In the case of substances which expand on solidification.c)In the case of substances which contract on solidification.d)In the case of substances which neither expand nor contract on solidification.Correct answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
The Clausius-clapeyron equation indicates that the increase of pressure increases the melting point.a)In the case of all substances.b)In the case of substances which expand on solidification.c)In the case of substances which contract on solidification.d)In the case of substances which neither expand nor contract on solidification.Correct answer is option 'C'. Can you explain this answer?, a detailed solution for The Clausius-clapeyron equation indicates that the increase of pressure increases the melting point.a)In the case of all substances.b)In the case of substances which expand on solidification.c)In the case of substances which contract on solidification.d)In the case of substances which neither expand nor contract on solidification.Correct answer is option 'C'. Can you explain this answer? has been provided alongside types of The Clausius-clapeyron equation indicates that the increase of pressure increases the melting point.a)In the case of all substances.b)In the case of substances which expand on solidification.c)In the case of substances which contract on solidification.d)In the case of substances which neither expand nor contract on solidification.Correct answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice The Clausius-clapeyron equation indicates that the increase of pressure increases the melting point.a)In the case of all substances.b)In the case of substances which expand on solidification.c)In the case of substances which contract on solidification.d)In the case of substances which neither expand nor contract on solidification.Correct answer is option 'C'. Can you explain this answer? tests, examples and also practice GATE tests.
|
|
Explore Courses for GATE exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup