What happen when you put ice cubes in water? Is it sink or float? You have observed that the ice cubes remains just down to the surface instead of sinking. Do you know whats the reason behind it?
So, here is the answer. Water is a liquid substance which is formed up of hydrogen and oxygen molecules. When two hydrogen atom combine with one oxygen atom then it form a molecule of water. When water is in liquid state, the molecules of water have much kinetic energy due to which they remain moving here and there. Their molecules sliding over others, due which the space between molecules of water is very less. And as the space is less, so the density is much. But when the temperature of water goes down, then the kinetic energy of molecules also goes down and when temperature goes below 4℃, then the kinetic energy of the molecules becomes so less. At that time ice molecules have not enough kinetic energy to break the bond and move freely. Wait.. what type of bond does ice molecules have? The structure of the bond is given in the figure below.
Image.1: Molecular structure of ice.
Water have oxygen and hydrogen atom which forms a hexagonal structure that contains lots of space between them. And due to these spaces ice have less density than water that's why ice float on water.
This is same, when you put card in deck then it will take less space and also it have high density, but when you make card tower then it will take much space and also density will goes down.
Following experiment will show you, what happen when we freeze water.
Step 1- Fill a bottle up to the neck and seal its cap tightly.
Step 2- Put it in your freezer for 2 hours.
Step 3- Take out the bottle (when water inside it frozen completely) and keep it outside the freezer for 10 minutes or until you see the outer surface of ice melted.
Step 4- Open the cap slowly.
Observation: You will find that water start coming out with force for few minutes.
Conclusion: As you filled the bottle with water up to neck, but after freezing it start coming out. This phenomenon is occurred because as I described you above that ice molecules have a hexagonal structure which contains much of space in comparison to water molecules. That's why 1 kg of ice have much volume than 1 kg of water.
Thanks for visiting.
And Please visit again.
So, here is the answer. Water is a liquid substance which is formed up of hydrogen and oxygen molecules. When two hydrogen atom combine with one oxygen atom then it form a molecule of water. When water is in liquid state, the molecules of water have much kinetic energy due to which they remain moving here and there. Their molecules sliding over others, due which the space between molecules of water is very less. And as the space is less, so the density is much. But when the temperature of water goes down, then the kinetic energy of molecules also goes down and when temperature goes below 4℃, then the kinetic energy of the molecules becomes so less. At that time ice molecules have not enough kinetic energy to break the bond and move freely. Wait.. what type of bond does ice molecules have? The structure of the bond is given in the figure below.
Water have oxygen and hydrogen atom which forms a hexagonal structure that contains lots of space between them. And due to these spaces ice have less density than water that's why ice float on water.
This is same, when you put card in deck then it will take less space and also it have high density, but when you make card tower then it will take much space and also density will goes down.
Following experiment will show you, what happen when we freeze water.
Step 1- Fill a bottle up to the neck and seal its cap tightly.
Step 2- Put it in your freezer for 2 hours.
Step 3- Take out the bottle (when water inside it frozen completely) and keep it outside the freezer for 10 minutes or until you see the outer surface of ice melted.
Step 4- Open the cap slowly.
Observation: You will find that water start coming out with force for few minutes.
Conclusion: As you filled the bottle with water up to neck, but after freezing it start coming out. This phenomenon is occurred because as I described you above that ice molecules have a hexagonal structure which contains much of space in comparison to water molecules. That's why 1 kg of ice have much volume than 1 kg of water.
Thanks for visiting.
And Please visit again.
Home Tutors in Delhi | Home Tutors Delhi