wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Byju's Answer
Standard VI
Chemistry
Anamolous Expansion of Water
Determine the...
Question


Determine the incorrect statements using the given phase diagram of water.

482616.png

A
The triple point is point A. This is the point at which all three phases are in equilibrium with one another
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
The line AB is the line representing the solid-liquid equilibrium line. Anywhere along this line the substance could melt or freeze
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
The slope of line AB is negative. This slope indicates that the solid is much denser than the liquid
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
Line AD represents the phase changes of sublimation and deposition
No worries! We‘ve got your back. Try BYJU‘S free classes today!
E
Line AC represents where the substance would condense and vaporize
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is D The slope of line AB is negative. This slope indicates that the solid is much denser than the liquid
The option (C) represents the incorrect statements using the given phase diagram of water.
The slope of line AB is positive. This slope indicates that the solid is much denser than the liquid.

flag
Suggest Corrections
thumbs-up
0
similar_icon
Similar questions
Q.

The phase diagram for a pure substance is shown above. Use this diagram and your knowledge about changes of phase to answer the following questions.

If the triple point pressure of a substance is greater than 1atm, we expect:

261784_1e1d21a1e5104a49aec937432db5ac80.png
Q. For many substances, there exists a temperature Ttr. and a pressure ptr at which all the three phases of a substance (gaseous, liquid, and solid) are in equilibrium. These temperature and pressure are known as the triple point. For example,Ttr=0.0075∘C and ptr=4.58mm Hg for water. The latent heat of vaporization of water at the triple point is q=2.48×103kJ/kg, and the latent heat of fusion of ice is λ=0.34×103kJ/kg.
Find the latent heat v of sublimation (i.e. a direct transition from the solid to the gaseous state) of water at the triple point.
Q. The pressure on a sample of water at its triple point is reduced while the temperature is held constant. Which phases changes are favoured?
(I) melting of ice
(II) sublimation of ice
(III) vaporization of liquid water.

Q. The first vertical line in the diagram represents a thermometer with the melting points for ice and dry ice (melting point of ice is greater than that of dry ice) at normal atmospheric pressure. The numbered vertical lines represent possible melting points of both the substances at 10 atmospheric pressure. Which vertical line best represents the melting points of both the substances at 10 atmospheric pressure relative to the respective values at normal atmospheric pressure?
Note : The difference in temperatures are not to the scale.
74478.jpg
Q.

The diagram below shows the change of phases of a substance on a temperature-time graph on heating the substances at a constant rate.

(a) What do the parts AB, BC, CD and DE represent?

(b) What is the melting point of the substance?

(c) What is the boiling point of the substance?


View More
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
CHEMISTRY
Watch in App
explore_more_icon
Explore more
Anamolous Expansion of Water
Standard VI Chemistry
Join BYJU'S Learning Program
book_image
AI Tutor
book_image
Textbooks
book_image
Question Papers
book_image
Install app
CrossIcon