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Select the false statement(s) about surface tension from the following? I. Surface tension is th…
Select the false statement(s) about surface tension from the following? I. Surface tension is th…
Select the false statement(s) about surface tension from the following? I. Surface tension is th…
Which of the following are not true about the surface tension?A. Small Liquid Drop take spherical shape due to surface tension B. Surface tension is a vector quantity C. The surface tension of a liqui [1]
Which of the following are not true about the surface tension?. Small Liquid Drop take spherical shape due to surface tension
The surface tension of liquid depends on length but not on the area. Hint: The surface tension is a quantity that does not have any particular direction and it is called a scalar and it depends on the force acting on the surface per unit length
Surface tension is the tendency of the fluid to arrange itself into a shape of minimum possible surface area.. For example, we have seen the rain droplets always in the shape of the sphere which is because of the surface tension
Objective Question Answer for Surface Tension Quiz [2]
Surface Tension MCQ Quiz – Objective Question with Answer for Surface Tension – Download Free PDF. On a clean glass plate, a drop of water spreads to form a thin layer whereas a drop of mercury remains almost spherical because –
– The spherical shape of a mercury droplet on glass is due to its strong cohesive forces, which are stronger than the adhesive forces between the mercury and the glass.. – Cohesion refers to the attraction between like particles (mercury to mercury), and adhesion refers to the attraction between unlike particles (mercury to glass).
– On the other hand, water molecules are strongly attracted to glass due to adhesive forces, causing the water to spread out and form a thin layer on a clean glass surface.. Water drops in space in spherical because in the absence / reduced effects of gravity, the forces governing the objects are all the same and therefore the drop.
Name: Steffany A Rivera Exercise 7: Respiratory System Mechanics: [3]
Exercise 7: Respiratory System Mechanics: Activity 3: Effect of Surfactant and Intrapleural Pressure on Respiration Lab. You scored 100% by answering 5 out of 5 questions correctly.
Surface tension acts to increase the size of the alveoli within the lungs.. Which of the following statements about surfactant is false?
Just before an inspiration begins, the pressure within the intrapleural cavity. The respiratory condition of pneumothorax refers to
Which of the following are not true about the surface tension?A. Small Liquid Drop take spherical shape due to surface tension B. Surface tension is a vector quantity C. The surface tension of a liqui [4]
Which of the following are not true about the surface tension?. Small Liquid Drop take spherical shape due to surface tension
The surface tension of liquid depends on length but not on the area. Hint: The surface tension is a quantity that does not have any particular direction and it is called a scalar and it depends on the force acting on the surface per unit length
Surface tension is the tendency of the fluid to arrange itself into a shape of minimum possible surface area.. For example, we have seen the rain droplets always in the shape of the sphere which is because of the surface tension
Identify the incorrect statement regarding surface tension. [5]
The correct option is C Surface tension increases, if temperature of liquid is increased keeping other parameters fixed.. Due to surface tension, a liquid’s free surface behaves like a stretched membrane
⇒It arises due to strong cohesive force acting between the liquid molecules.. ∵ Increasing temperature of liquid will weaken the intermolecular cohesive forces, hence surface tension will decrease if temperature is increased.
SOLVED: Question 3 (1 point) Which of the following statements about lung surfactant and/or surface tension is FALSE? [6]
Get 5 free video unlocks on our app with code GOMOBILE. Question 3 (1 point) Which of the following statements about lung surfactant and/or surface tension is FALSE?
– Surfactants increase the cohesive forces between water molecules.. – The effect of lung surfactant on surface tension within an alveolus varies with the breathing cycle.
– Lung surfactant is produced by cells in the alveoli.. Which one of these statements about lungs is false?a
[PhysioEX Chapter 7 exercise 3] PEX-07-03 — Steemit [7]
Exercise 7: Respiratory System Mechanics: Activity 3: Effect of Surfactant and Intrapleural Pressure on Respiration Lab. You scored 100% by answering 5 out of 5 questions correctly.
Surface tension acts to increase the size of the alveoli within the lungs.. Which of the following statements about surfactant is false?
Just before an inspiration begins, the pressure within the intrapleural cavity. The respiratory condition of pneumothorax refers to
Surface Tension [8]
Surface tension is the energy, or work, required to increase the surface area of a liquid due to intermolecular forces. Since these intermolecular forces vary depending on the nature of the liquid (e.g
Whether you know it or not, you already have seen surface tension at work. Whenever you fill a glass of water too far, you may notice afterward that the level of the water in the glass is actually higher than the height of the glass
Both of these phenomena are due to surface tension.. In a sample of water, there are two types of molecules
Surface tension [9]
This article may need to be rewritten to comply with Wikipedia’s quality standards. Surface tension is the tendency of liquid surfaces at rest to shrink into the minimum surface area possible
water striders) to float on a water surface without becoming even partly submerged.. At liquid–air interfaces, surface tension results from the greater attraction of liquid molecules to each other (due to cohesion) than to the molecules in the air (due to adhesion).[1]
The net effect is the liquid behaves as if its surface were covered with a stretched elastic membrane. But this analogy must not be taken too far as the tension in an elastic membrane is dependent on the amount of deformation of the membrane while surface tension is an inherent property of the liquid–air or liquid–vapour interface.[4]
Which of the following statements is not true about surface tension ? [10]
Which of the following statements is not true about surface tension ?. A small liquid drop takes spherical shape due to surface tension.
Surface tension of liquid depends on length but not on the area
MCAT Physical [11]
Which of the following is a possible unit of measurement for surface tension?. Surface tension is a phenomenon observed in fluids, and is defined as the resistance of a fluid to outside force (or a resistance to increased surface area)
The SI unit for force is Newtons and the SI unit for length is meters; therefore, the surface tension is usually measured as .. Surface tension can also be measured in energy per unit area
We can see that these units are equivalent by looking at the conversion of Joules and Newtons:. Which of the following is false regarding surface tension?
Surface Tension [12]
Surface tension is measured as the energy required to increase the surface area of a liquid by a unit of area. The surface tension of a liquid results from an imbalance of intermolecular attractive forces, the cohesive forces between molecules:
|The molecules at the surface of this sample of liquid water are not surrounded by other water molecules. The molecules inside the sample are surrounded by other molecules.||The unbalanced attraction of molecules at the surface of a liquid tends to pull the molecules back into the bulk liquid leaving the minimum number of molecules on the surface
|When liquid water is confined in a tube, its surface (meniscus) has a concave shape because water wets the surface and creeps up the side.||Mercury does not wet glass – the cohesive forces within the drops are stronger than the adhesive forces between the drops and glass. When liquid mercury is confined in a tube, its surface (meniscus) has a convex shape because the cohesive forces in liquid mercury tend to draw it into a drop.|
Objective Question Answer for Surface Tension Quiz [13]
Surface Tension MCQ Quiz – Objective Question with Answer for Surface Tension – Download Free PDF. On a clean glass plate, a drop of water spreads to form a thin layer whereas a drop of mercury remains almost spherical because –
– The spherical shape of a mercury droplet on glass is due to its strong cohesive forces, which are stronger than the adhesive forces between the mercury and the glass.. – Cohesion refers to the attraction between like particles (mercury to mercury), and adhesion refers to the attraction between unlike particles (mercury to glass).
– On the other hand, water molecules are strongly attracted to glass due to adhesive forces, causing the water to spread out and form a thin layer on a clean glass surface.. Water drops in space in spherical because in the absence / reduced effects of gravity, the forces governing the objects are all the same and therefore the drop.
Does the value of Surface tension (the value of the constant) change with a change in surface area? [14]
Yes, surface tension can change with the area, but is is important to recognize the ensemble you’re in.. Take first the case of lung surfactants, where you have water, air, and the surfactants in between
This is to say that the tension increases (as it would if you were stretching an elastic rubber band). Now suppose there were a lot surfactants in the water in micelles (past CMC) and you then increased the area: The tension would not change
Obviously this equilibration process will happen over a certain timescale and is not instantaneous (see Ward & Tordai). Similarly, if you increase the area, but your ensemble is such that the number of surfactants increase with the change of area, you will get no effect on surface tension.
Sources
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- https://testbook.com/objective-questions/mcq-on-surface-tension–5eea6a0c39140f30f369dfec#:~:text=Statement%201)%20is%20correct.,to%20the%20smallest%20possible%20size.
- https://www.studocu.com/en-us/document/university-of-houston-downtown/human-physiology-laboratory/pex-07-03-physio-ex-91/2184081
- https://www.vedantu.com/question-answer/which-of-the-following-are-not-true-about-the-class-11-physics-cbse-5f3a2ed372fa2239f247b2eb
- https://byjus.com/question-answer/identify-the-incorrect-statement-regarding-surface-tension/
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- https://steemit.com/physioex/@ramonistry/physioex-chapter-7-exercise-3-pex-07-03
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- https://www.sarthaks.com/1551229/which-of-the-following-statements-is-not-true-about-surface-tension
- https://www.varsitytutors.com/mcat_physical-help/fluids-and-gases/zphysics/submersion?page=4
- https://www.chem.purdue.edu/gchelp/liquids/tension.html
- https://testbook.com/objective-questions/mcq-on-surface-tension–5eea6a0c39140f30f369dfec
- https://physics.stackexchange.com/questions/186163/does-the-value-of-surface-tension-the-value-of-the-constant-change-with-a-chan
