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What do molecules move faster in a solid liquid or gas?
Molecules move fastest in a gas, then in a liquid, and slowest in a solid. In a gas, molecules have high kinetic energy and move freely, while in a liquid, molecules can slide past each other but are still somewhat restricted. In a solid, molecules have the least amount of kinetic energy and vibrate in fixed positions.
What happens to the density of a fluid when it is heated?
When the liquid molecules are heated, they move faster so the liquid boils and some molecules becomes gas molecules. When the liquid molecules are heated, they move faster so the liquid boils and some molecules becomes gas molecules.
How can the evaporation of a liquid you made faster?
To make the evaporation of a liquid faster, you can increase the surface area of the liquid by spreading it out in a thin layer, increase the temperature of the liquid to increase its energy, and increase air circulation over the liquid to remove the evaporated molecules.
What happens to the molecules in a substance when thermal energy is removed?
When thermal energy is removed from a substance, the molecules lose kinetic energy and slow down. This often causes the substance to cool down as the molecules have less energy to move and vibrate. In extreme cases, the substance may undergo a phase change, such as from a liquid to a solid.
Is heat added or removed to evaporation?
Heat is added to facilitate evaporation. As a liquid absorbs heat, its molecules gain energy and move faster, eventually reaching a point where they can overcome the intermolecular forces holding them together and escape into the gas phase.
How could you increase the kinetic thermal energy of a liquid?
You can increase the kinetic thermal energy of a liquid by heating it. When you add heat to a liquid, the temperature increases, which in turn increases the kinetic energy of the molecules in the liquid. This causes the molecules to move faster and leads to an increase in the thermal energy of the liquid.
What does an increase of temperature do to the KE of a liquid?
An increase in temperature of a liquid causes the kinetic energy (KE) of the liquid molecules to increase. This increase in thermal energy leads to faster movement of the molecules, resulting in higher kinetic energy.
What happen when energy is removed from a liquid?
A liquid becomes a solid when heat is removed. The energy content decreases, and the speed of the particles decrease. When bonds form, heat energy is given off. This reaction is an exothermic reaction.
Will molecules go faster and farther when liquid turns to gas?
Yes, when a liquid turns into a gas, the molecules gain energy and move faster and farther apart from each other. This is because the intermolecular forces that hold the liquid molecules together are overcome as the energy input increases during the phase change.
Why is energy required to evaporate a liquid?
Energy is required to evaporate a liquid because the molecules in the liquid need to overcome the intermolecular forces holding them together. This energy is used to break these forces, allowing the molecules to escape into the gas phase. The absorbed energy increases the kinetic energy of the molecules, enabling them to break free from the liquid's surface and become vapor.
Do molecules in a liquid have the same kinetic energy as a gas?
No, molecules in a liquid have lower kinetic energy compared to a gas. In a liquid, the molecules are closer together and have weaker kinetic energy as they move more slowly. In contrast, molecules in a gas have higher kinetic energy because they are more spread out and move faster.
Do molecules move slower or faster or the same during evaporation?
Molecules move faster during evaporation because when a liquid evaporates, the molecules gain energy from the surroundings, increasing their kinetic energy and causing them to move more rapidly.
Do molecules move faster in a liquid?
Molecules actually move faster in liquid because they have more space between them to move about. That's why liquid can flow, and a solid cannot. =)
In which of the phases of matter do molecules have the highest amount of energy?
Molecules have the highest amount of energy in the gas phase because the molecules are moving faster and have more kinetic energy compared to the solid and liquid phases.
Do molecules gain or lose energy from evaporation?
Water molecules gain energy in order to vaporize. That additional energy is needed in order for the water molecules to overcome the attraction that they have for the other water molecules in the liquid that they are part of. In the gas phase, water molecules move independently of each other and are not connected as they are in the liquid state.
Does kinetic energy increase or decrease when a liquid changes to a gas?
Kinetic energy increases when a liquid changes to a gas because the molecules in a gas have higher average kinetic energy compared to those in a liquid. When a liquid evaporates and becomes a gas, the molecules gain more energy and move faster, increasing their kinetic energy.
Do molecules gain or lose energy from melting?
When matter melts (changes from a solid to a liquid state), its molecules move faster, meaning they are gaining energy.
