Civil Engineering - Hydraulics - Discussion
Discussion Forum : Hydraulics - Section 3 (Q.No. 23)
23.
Molecules of fluids get attracted due to
Discussion:
44 comments Page 2 of 5.
Madan said:
4 years ago
Please explain this in detail.
Hariom meena said:
4 years ago
Cohesion is the right option.
Fahad said:
5 years ago
Agree, thanks @Mohit.
Muhammad zaheer said:
5 years ago
Its C, because the question is molecules of fluids not fluid (which means different types of liquid molecules are attracted by adhesion).
Achumi kits said:
5 years ago
According to the question it says molecule of fluids (which is plural) that means more than one fluid.
Cohesion: The attraction between a molecule of a fluid (single fluid) ie, singular.
Adhesion: Attraction between different molecules (more than one fluid or fluid to container) ie, plural.
So, the answer is ADHESION.
Cohesion: The attraction between a molecule of a fluid (single fluid) ie, singular.
Adhesion: Attraction between different molecules (more than one fluid or fluid to container) ie, plural.
So, the answer is ADHESION.
(1)
Khattak said:
5 years ago
I think the given answer is right because here it is not mentioned that whether they are molecules of same fluids are of different fluids, if we consider the common example of water in a glass, where the glass inner side gets wet, this is because of the water molecules gets attracted towards the glass, which says adhesion occurred.
Dheeraj said:
6 years ago
Correct answer is cohession.
Mukul said:
6 years ago
Cohesion- attractive force between similar bodies. (Here water molecules are similar bodies).
Adhesion- attractive force between two different bodies (water attached to the glass).
And, mercury in the glass does not wet it or doesn't wet when kept on the table because of very strong cohesive force between mercury molecules there is no adhesive force between mercury molecules and glass i.e. why it didn't wet it.
Adhesion- attractive force between two different bodies (water attached to the glass).
And, mercury in the glass does not wet it or doesn't wet when kept on the table because of very strong cohesive force between mercury molecules there is no adhesive force between mercury molecules and glass i.e. why it didn't wet it.
(1)
Anomie said:
6 years ago
Let me make it clear and simple:
Adhesion occurs between two different Molecules.
Cohesion occurs between two same Molecules.
In the Question, it says "FLUIDS" not "FLUID"
Which means different Fluids/Molecules.
So the Correct Answer is (C) Adhesion.
Adhesion occurs between two different Molecules.
Cohesion occurs between two same Molecules.
In the Question, it says "FLUIDS" not "FLUID"
Which means different Fluids/Molecules.
So the Correct Answer is (C) Adhesion.
Abdul Latif said:
6 years ago
A correct answer is an option : D Cohesion because it is clearly mentioned in the question that molecules get attracted means to "each other". So, it's cohesion.
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