The molecules on the surface of a liquid experience cohesive forces due to surrounding liquid molecules acting downward and adhesive forces due to surrounding gaseous molecules acting upwards. Surface tension orginates due to this unbalanced force on the surface molecules.
What is the reason behind the origin of surface tension?
1. Which of the following contribute to the reason behind the origin of surface tension? Explanation: The molecules on the surface of a liquid experience cohesive forces due to surrounding liquid molecules acting downward and adhesive forces due to surrounding gaseous molecules acting upwards.
How does surface tension affect the surface of a liquid?
Explanation: The molecules on the surface of a liquid experience cohesive forces due to surrounding liquid molecules acting downward and adhesive forces due to surrounding gaseous molecules acting upwards. Surface tension orginates due to this unbalanced force on the surface molecules.
What forces act on the surface of a liquid?
Explanation: The molecules on the surface of a liquid experience cohesive forces due to surrounding liquid molecules acting downward and adhesive forces due to surrounding gaseous molecules acting upwards. Surface tension orginates due to this unbalanced force on the surface molecules. 2.
What is surface tension in film physics?
Ans. 1. Surface tension - it is the property of liquid surface film to exert tension. It is the force required to maintain unit length of the film in equilibrium. The layer formed at the surface whi view the full answer ?
Which of the following forces contribute to surface tension?
The cohesive forces between liquid molecules are responsible for the phenomenon known as surface tension.
Which of the following is an example of phenomenon of surface tension Mcq?
Surface tension is caused by the force of ..... at the free surface. The pressure of a liquid on a surface will always act ...... to the surface....Q.Which of the following is an example of phenomenon of surface tension?A.Rain dropsB.Rise of sap in a treeC.Break up of liquid jetsD.All of the above.1 more row
What is surface tension What is its cause why is the surface tension also called surface energy?
The attractive force of the molecules present at the surface of a liquid towards each other is called the surface tension of that liquid. Surface energy is the equivalent attractive force present between the molecules at the surface of a solid substance.
What is the reason for surface tension Class 9?
The attraction forces between particles in the surface layer and the particles in the bulk of the liquid, which tends to minimize its surface area, causes surface tension.
Which of the following substances decreases the surface tension of water Mcq?
Surfactants are the materials which are used to reduce surface tension of water.
Which of the following method is used to determine surface tension of liquid?
The Du Noüy ring method is used to determine the surface tension of a liquid. A platinum-iridium ring is drawn out of the liquid while, at the same time, the maximum force caused by the tension of the liquid lamella during the movement of the ring is measured.
What is the reason behind the high surface tension of water?
The high surface tension of water is caused by strong molecular interactions. The surface tension arises due to cohesive interactions between the molecules in the liquid. At the bulk of the liquid, the molecules have neighboring molecules on each side.
Which of the following properties allows for surface tension in water?
Cohesive forces are responsible for surface tension, the tendency of a liquid's surface to resist rupture when placed under tension or stress.
What are the factors affecting surface tension of a liquid?
Surface tension is caused by the effects of intermolecular forces at the interface. Surface tension depends on the nature of the liquid, the surrounding environment and temperature. Liquids where molecules have large attractive intermolecular force will have a large surface tension.
What are 3 surface tension examples?
Examples of Surface TensionA Drop of Liquid. ... Soaps and Detergents. ... Washing with Hot Water. ... Clinical Test for Jaundice. ... Water Striders. ... Capillary Action. ... Formation of a Meniscus. ... Bubbles.More items...
What is surface tension called?
Surface tension is the tendency of liquid surfaces at rest to shrink into the minimum surface area possible. Surface tension is what allows objects with a higher density than water such as razor blades and insects (e.g. water striders) to float on a water surface without becoming even partly submerged.
Which of the following is an application of surface tension?
Explanation: Use of soaps and detergents as cleansing agents, molecular structure can be elucidated by surface tension measurements through parachor values and surfactants are incorporated in preparations like toothpaste are the applications of surface tension.
Which is the example of phenomenon of surface tension?
Examples of Surface Tension In the absence of gravity, the drop would minimize the surface area in order to minimize tension, which would result in a perfectly spherical shape. Insects walking on water. Several insects are able to walk on water, such as the water strider.
Which of the following is an example of phenomenon of surface tension *?
surface tension, property of a liquid surface displayed by its acting as if it were a stretched elastic membrane. This phenomenon can be observed in the nearly spherical shape of small drops of liquids and of soap bubbles. Because of this property, certain insects can stand on the surface of water.
Which one of the following is example of surface tension?
Examples of Surface Tension Insects walking on water. Floating a needle on the surface of the water.
Which of the following method is used to determine surface tension of liquid Mcq?
Explanation: The apparatus used for the determination of surface tension of a liquid is called stalagmometer. It is equivalent to force per unit length.
Why do liquids have cohesive forces?
Explanation: The molecules on the surface of a liquid experience cohesive forces due to surrounding liquid molecules acting downward and adhesive forces due to surrounding gaseous molecules acting upwards. Surface tension orginates due to this unbalanced force on the surface molecules. 2.
How many multiple choice questions are there in fluid mechanics?
To practice all areas of Fluid Mechanics, here is complete set of 1000+ Multiple Choice Questions and Answers.
Is the rise in liquid level independent of the amount of liquid present in the tube?
Explanation: The rise in liquid level for a liquid is independent of the amount of liquid present in the tube. Since, same tube is used and same liquid is considered, the rise in the liquid level will remain the same.
Who is Manish Bhojasia?
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He is Linux Kernel Developer & SAN Architect and is passionate about competency developments in these areas. He lives in Bangalore and delivers focused training sessions to IT professionals in Linux Kernel, Linux Debugging, Linux Device Drivers, Linux Networking, Linux Storage, Advanced C Programming, SAN Storage Technologies, SCSI Internals & Storage Protocols such as iSCSI & Fiber Channel. Stay connected with him @ LinkedIn | Youtube | Instagram | Facebook | Twitter
Why do liquids have cohesive forces?
Clarification: The molecules on the surface of a liquid experience cohesive forces due to surrounding liquid molecules acting downward and adhesive forces due to surrounding gaseous molecules acting upwards. Surface tension orginates due to this unbalanced force on the surface molecules. 2. A soap film is trapped between a frame and a wire ...
What is the pressure difference of a 5 cm jet?
5. A liquid jet of 5 cm diameter has a pressure difference of N/m 2. (Take surface tension as 0.075 N/m)