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Water wets glass because the adhesive forces between water molecules and the glass surface are stronger than the cohesive forces between water molecules. On the other hand, lotus leaves have a rough surface with microscopic bumps that create a high contact angle with water, causing it to bead up and roll off easily due to a combination of low adhesive forces and high surface tension.
What else can I help you with?
What property of water allows liquids to climb?
This is due to capillary action and it found usually in tiny tubes. If the water wets the sides of the tube, it will rise. Water is said to be "sticky" and will adherd to surfaces and to other water molecules.
Why is mercury a more suitable liquid for thermometer than water and alcohol?
Non sticky to the glass surface Because of shining its level can be easily seen Boiling point is high Being metal, coefficient of expansion is high Above all, its angle of contact with glass is obtuse and so its meniscus is convex.
Why is water not used as thermometric liquid?
water does not have the quality of both alcohol and Mercury which can be easily measured it cannot measure temperatures below 32 degrees F / 0 degrees C (the water would freeze). It also cannot measure temperatures above 212 degrees F / 100 degrees C (the water would boil).
Can mercury and alcohol mixed to become a thermometer?
Mercury and alcohol are not the thermometers but the liquids found in the thermometer they have different properties that make them uniqe for example alcohol is safe while mercury is poisonous,alcohol does not expand uniformly but has great expansion while mercury expands uniformly and has low expansion,alcohol is cheap while mercury is expensive,alcohol wets the glass while mercury does not.so alcohol can not combine to form a thermometer simply because they are the liquids found in it and not the thermometer itself.
What other surfaces does water bead up on?
Surfaces on which water beads are called hydrophobic surfaces. That is, the water "fears" the surface. Water tends to bead up on these types of surfaces because it is more strongly attracted to itself (other water molecules) than the surface molecules. Common hydrophobic surfaces include waxes, Teflon, and most plastics.
Water wets a glass rod therefore?
13
Why is a glass jug better than a plastic jug when measuring water?
Water "wets" plastic more than glass, giving a lower reading
Why does water wet glass and mercury does not?
Water wets glass because the force of adhesion between the glass molecules and water molecules is greater than the force of cohesion between the water molecules and glass molecules. Mercury does not wet glass because the force of cohesion is greater than the force of adhesion
When was The Get Wets created?
The Get Wets was created in 2006.
When was WETS-FM created?
WETS-FM was created on 1974-02-24.
When was Roger J-B Wets born?
Roger J-B Wets was born in 1937.
Show land and water features?
Show land and water features is when the land collides with the water.Like in a beach. The water comes up to shore and wets the sand.A formation of infideois
Why does water form a meniscus when it is put into a glass beaker?
Water in a graduated cylinder form a meniscus due to attraction between the water molecules and the glass and the water being repelled by the container. If it is repelled a convex meniscus will be formed and if attracted it will result of a concave meniscus.
Why he will not see you on weekends?
a wets number
What do you mean when you say that water wets a surface such as the surface of sand?
The term "wetting" has a specialized meaning in surface chemistry. We usually say that a liquid "wets" a surface if the contact angle a droplet of the liquid makes with the surface is less than 90 degrees, and that it "doesn't wet" a surface if the contact angle is 90 degrees or more.
HELP - I need it by July 16 2009 - Which is stronger - cohesion in a liquid or its adhesion to a solid?
it depends on the solid with which the liquid comes in contact, if the adhesion is stronger the liquid wets the solid else i t cannot ; eg;- in the case of water and glass the adhesion is much stronger than cohesion ,on the other hand the cohesion is greater if you consider the case of water and certain leaves(in which water cant wet them).
What form of matter that flows and wets?
liquid.
