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Water molecules become as tightly packed as possible at about 4 degrees Centigrade. In ambient conditions, as liquid water cools below this point of maximum density, hydrogen bonds form in the water, and it eventually freezes (becomes a solid) to give us ice. Ice is obviously less dense than water because we can see ice floating on water.
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Explain how air pressure is related to temperature?
As air temperature increases, air molecules gain more energy and move faster, causing the air to expand and become less dense. This leads to a decrease in air pressure since the air molecules are more spread out. Conversely, as air temperature decreases, air molecules lose energy and move slower, causing the air to contract and become more dense, resulting in an increase in air pressure.
How do the molecules change as they change from a solid to a liquid?
In a solid, molecules are tightly packed and have a fixed position. As the solid is heated to become a liquid, the molecules gain enough energy to overcome the attractive forces holding them in place, allowing them to move more freely. This results in an increase in disorder and a change in physical properties such as shape and volume.
What must molecules do for matter to become warm?
Molecules must gain kinetic energy, which increases their movement and vibrational activity. This increased motion causes friction and interactions between molecules, leading to an overall rise in temperature.
What is the hypothesis describing the behavior of molecules when a substance changes from a gas to a liquid?
The hypothesis regarding the behavior of molecules when a substance changes from a gas to a liquid is that as the temperature decreases, the kinetic energy of the molecules decreases, causing them to come closer together and form intermolecular forces. Eventually, these forces become strong enough to hold the molecules together in a liquid state instead of allowing them to move freely as in a gas.
Why is the density of water temperature dependent?
The temperature of water is determined by the amount of vibration of the water molecules. Heat is random molecular motion. And if molecules are vibrating more, they are also going to occupy more space.
Is it possible reduce distance between molecules of gas such that it become liquid?
Yes. This can be none by drcreasing the temperature or, if the substance is not above its critical point, by increasing the pressure.
How does gases change to liquids?
the_temperature_is_lowered_causing_the_molecules_to_slow_down_enough_to_where_they_become_a_liquid.if_they_slow_down_too_much_they_become_a_solid.as_you_lower_the_temperature_the_closer_the_molecules_get_to_eachother_and_slow_down_more_and_more.">the temperature is lowered causing the molecules to slow down enough to where they become a liquid.if they slow down too much they become a solid.as you lower the temperature the closer the molecules get to each other and slow down more and more.
Does rubber shrink when heated?
Yes, rubber typically shrinks when heated because the heat causes the rubber molecules to contract and become more tightly packed together.
What happen to a substance during changes between solid a liquid?
The molecules of a solid are more tightly or securely fixed or fastened together. When heat is applied to the solid, the molecules become agitated or set in motion thus becomming more liquified.
What must molecules do for a matter to become warmer?
For matter to become warmer, its molecules must increase their kinetic energy, which typically occurs through the absorption of heat. As the molecules gain energy, they move more rapidly and vibrate more intensely, leading to an increase in temperature. This molecular motion can result in expansion of the material as the distance between molecules increases. Overall, the energy transfer and increased motion of molecules are key to raising the temperature of a substance.
What happen to the atom or molecules of a substance when it melts?
The intermolecular forces are weakened.
When a liquid becomes a gas the break away from one another?
During a liquid heating the intermolecular forces between molecules are first weakened and then supressed.As a consequence these molecules escape from the liquid and become a gas.Boiling occur at the boiling point and in the entire volume of the liquid; evaporation occur at the surface of the liquid and is possible at a temperature under the boiling point.
When the air molecules get closer to the Earth's surface they become more tightly?
packed together due to higher pressure, resulting in increased density. This causes the air to become heavier and more compact as it moves closer to the Earth's surface.
What increases the volume of a substance when the temperature increases?
The cause is the thermal expansion of the material; increasing the temperature the molecules become more and more separated each from others.
When a substance changes from a solid to a gas what happens to the speed of the molecules?
When a substance changes from a solid to a gas, the speed of the molecules increases. In the gas phase, the molecules have more energy and move more freely compared to when they were in a solid state where they were tightly packed and vibrating in fixed positions.
As deep ocean water becomes colder it also becomes?
denser, due to the decrease in temperature causing the water molecules to contract and become more tightly packed. This increased density causes the cold water to sink to the bottom of the ocean, creating ocean currents as it displaces warmer, less dense water.
When you put cool water in the glass why the outside vapour appears?
as the air molecules are free to move , when we pour cold water in glass its surface become cooler than the room temperature , thr air molecules stick with the walls of glass and due to low temperature there these air molecules deposit there.
