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Gases cool down when their temperature decreases, causing their particles to slow down and lose energy. This cooling process can occur naturally in the atmosphere, as in the case of air cooling at higher altitudes, or artificially through methods like refrigeration or expansion cooling.
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All gases become liquids when cooled to their what point?
All gases become liquids when cooled to their respective boiling points. At this temperature, the vapor pressure of the gas matches the external pressure, causing the gas to condense into a liquid state.
What gasses condense?
Gases with low boiling points, such as water vapor, can condense into liquid form when cooled. Additionally, gases with high vapor pressure can also condense under the right conditions.
Are at low temperatures ideal gases liquefy?
At low temperatures, ideal gases can liquefy if they are cooled below their critical temperatures. At temperatures below the critical temperature, the gas will condense into a liquid due to the decreased molecular motion and intermolecular forces becoming dominant over kinetic energy.
What are the similarities of solid liquids and gases?
Solids, liquids, and gases are all made up of protons, neutrons, and ions. They also all go through changes when heated or cooled.
What happends to solid liquid and gas particales when they get hot and cold?
When particles are heated, they gain energy and move faster, causing solids to melt into liquids and liquids to evaporate into gases. On the other hand, when particles are cooled, they lose energy and move slower, causing gases to condense into liquids and liquids to freeze into solids.
Which two gasses do not condense when air is cooled to 200 degrees centigrade?
Oxygen and Nitrogen are the two gases that do not condense when air is cooled to 200 degrees Celsius. They remain as gases at this temperature.
Does gases contract when heated?
No, gasses expand when heated and contract when cooled.
What happens to gases as they are heated or cooled?
they tend to vibrate
What are solutes that dissolve better when cooled?
Gases are more soluble at low temperatures.
All gases become liquids when cooled to their what point?
All gases become liquids when cooled to their respective boiling points. At this temperature, the vapor pressure of the gas matches the external pressure, causing the gas to condense into a liquid state.
Why is the air filtered before the gases are separated?
Because the gasses are compressed and cooled to -200 degress
Which of these is defined as the change in physical state from gas to liquid?
When gases are cooled, they convert to liquids. This is termed as condensation.
How can a homogeneous mixture be separated?
A homogeneous mixture of gases (air) can be separated by fractional liquefaction. The mixture is gradually cooled, with the gases being separated by differences in boiling point.
Can gases expand or contract?
Yes, gases can both expand and contract. When heated, gases expand as the molecules move more rapidly, increasing the pressure and volume. Conversely, when cooled, gases contract as the molecules slow down, decreasing the pressure and volume.
What are similarities between solids and gases?
Solids, liquids, and gases are all made up of protons, neutrons, and ions. They also all go through changes when heated or cooled.
How does density change?
Density usually changes when an object is heated or cooled - especially in the case of gases, or when there is a change of phase.
What is a vent in foundry?
Vent is an opening provided for gases to escape from the moulding box. The gases are formed during solidification of the metal.i.e, when the metal is cooled ,the earlier high temperatures will lead to the formation of steam ,this steam is converted into gases to be escaped.
