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It is to do with the surface tension (ST). Mercury has very big ST. Water will form droplets too but on the oily surface. This is because water molecules form hydrogen bonds and the oily (organic) matter cannot form them. Thus, thermodynamically it is more favourable for water to have as little interactions with the organic surface as possible. This is achieved by reducing the surface area in forming a droplet.
In a liquid a sort of internal pressure is created because the molecules that are inside (in the bulk) are pulled into all the possible directions, owever the molecules on the surface lack some of the pull. Therefore, they have higher energy and are pulled more inwards than outward. If you imagine all the molecules at the surface (when we imagine the hypothetical liquid being spread a lot) to be pulled in, the matter will 'pack' itself into the lower energy shape with reduced surface area - droplet.
What else can I help you with?
What shape is the planet mercury?
Mercury is roughly spherical in shape, like most other planets. Its shape is determined by its gravity, which pulls the planet's material into a compact, rounded form.
Is Mercury perfectly round?
Mercury is definitely not perfectly round. All of our photos of Mercury show that it's covered in craters which cause ridges to form all over the planet. This means that it's not perfectly round.
Why does a drop of water placed on the surface of oil contracts to form a spherical shape?
The surface tension of the water and the fact that oil and water cannot wet each other.
Why does mercury the metal form a ball shape?
Mercury has a much greater force of cohesion than its adhesive force with glass. Therefore, the molecule of mercury at the edge are pulled inward by the inner molecules.But,the molecules do not move inward as there movement is opposed by the inner molecules.This causes 'tension' among the molecules near the edge.So, the molecules of mercury near the edge rearrange themselves so that no unbalanced force acting upon the molecules of mercury.In doing so, they take a spherical shape.
Does water molecule have sphere shape?
No, a water molecule does not have a spherical shape. It has a bent, angular structure due to the arrangement of the two hydrogen atoms and one oxygen atom bonded together. This bent shape gives water its unique properties such as polarity and the ability to form hydrogen bonds.
What shape is the planet mercury?
Mercury is roughly spherical in shape, like most other planets. Its shape is determined by its gravity, which pulls the planet's material into a compact, rounded form.
Why small water drops are spherical in shape?
Small water drops are spherical in shape due to surface tension. Surface tension is a property of liquids that causes them to minimize their surface area, resulting in a spherical shape for small droplets as it is the shape that has the lowest surface area. This is why small water drops tend to form perfect spherical shapes.
Why a drop of water adopts sperical shape?
A drop of water adopts a spherical shape due to surface tension, which minimizes the surface area of the drop for a given volume. The cohesive forces between water molecules cause them to attract each other, resulting in a spherical shape that has the least surface area, making it energetically favorable.
What has a shape of a sphere?
In the nature the small water droplets falling in the form of rain are spherical.
Why does water become spherical when thrown in air?
Water tends to form a spherical shape when thrown in the air due to surface tension. Surface tension causes the water molecules to stick together and minimize the surface area, forming a spherical shape, which has the least surface area for a given volume.
Why does liquid water take the shape of a sphere?
Liquid water tends to form spherical droplets due to surface tension, which minimizes the surface area of the water droplet. This results in a spherical shape, as it has the smallest surface area for a given volume of water.
What are inner planet shapes?
The inner planets (Mercury, Venus, Earth, Mars) in our solar system are all roughly spherical in shape due to their gravity compressing their material into a spherical form. They lack the mass to maintain a more irregular shape like some larger moons or asteroids.
Why does water form a spherical shape on wax paper instead spreading out flat?
Surface tension attracts water molecules inward.
Why does water form a spherical shape on wax paper-instead of spreading out flat?
Surface tension attracts water molecules inward.
Why does water form spherical shape on wax paper instead of spreading out flat?
Surface tension attracts water molecules inward.
Why does water form a spherical shape on wax paper instead of spreading flat?
Surface tension attracts water molecules inward.
Why does water form spherical shape on a wax paper instead of spreading out flat?
Surface tension attracts water molecules inward.
