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When water changes from a liquid to a gas, it is evaporating or boiling. The "heat and energy" of the water molecules increases in the gaseous state. In fact, water molecules must pick up energy to change state from a liquid to a gas. Water molecules that are free to move as a gas have more kinetic energy than water molecules in a liquid form (as long as the liquid is not pressurized). The "heat and energy" of the H2O molecules that are now a gas is higher than that of liquid water.
It should be noted that the thermal energy (heat) necessary to cause water to change state and become a liquid must come from somewhere. In evaporation, the energy necessary for the water molecule to escape from the liquid comes from the liquid. The liquid cools. We know that if we wet our finger and blow on it, it feels cool because evaporating water cools liquid water from which it escapes. That evaporating water has taken energy from the liquid water.
In the case of boiling, water molecules take energy from liquid water, but the liquid water might not be cooling. It probably isn't as that liquid water is having thermal energy (heat) pumped into it by a heat source of some kind. Turn on a burner or element on the range under a pan of water and the water will begin warming until it's boiling. As water boils off, it is taking thermal (heat) energy with it, but the remaining water doesn't cool down as the heat source continues to add more thermal energy.
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What happens to the the energy from the sun when it changes liquid water into water vapor?
The energy from the sun causes liquid water to evaporate and change into water vapor. This process requires heat energy to break the bonds between water molecules, allowing them to escape into the air as vapor.
What are the three phases of water How does water change from one phase to another?
The three phases of water are, liquid, solid and gas. Water changes from liquid to solid by Freezing. It changes from liquid to gas by Evaporation. It changes from solid to gas by Sublimation. It changes from solid to liquid by Melting. It changes from gas to liquid by Condensation.
Process in which water vapor changes into liquid water?
The process is called condensation. It occurs when water vapor in the air loses heat energy and changes into liquid water, forming water droplets or clouds. It is a crucial part of the water cycle, where water continuously changes states between vapor, liquid, and ice.
What change is involved when water vapor condenses into liquid water?
When water vapor condenses into liquid water, it changes from a gas to a liquid state. This process releases heat energy as the water molecules slow down and come closer together, forming liquid droplets.
What is the scientific name for the process where water changes into water vapour?
The scientific name for the process where water changes into water vapor is "evaporation." This occurs when heat energy is applied to liquid water, causing its molecules to gain energy and transform into a gaseous state.
When condensation occurs water changes from what?
Gas (water vapor in the air) to liquid (on the surface).
What is the heat that is released when water condenses and changes to liquid form?
The heat released when water condenses and changes to liquid form is called the latent heat of condensation. This heat is released because the water vapor loses energy as it transitions to a liquid state, leading to a release of thermal energy.
What is the heat energy released when water vapor change to a liquid called?
The heat energy released when water vapor changes to a liquid is called heat of condensation. This process occurs when water vapor loses energy and transforms into liquid water, releasing latent heat in the process.
Does heat energy add during condensation?
During condensation, heat energy is released as water vapor changes to liquid water. This is known as the latent heat of condensation.
What is the energy absorbed by one gram of water as it changes from its liquid phase into water vapor known as?
The energy absorbed by one gram of water as it changes from its liquid phase into water vapor is known as the heat of vaporization. This energy is used to overcome the intermolecular forces holding the water molecules together in the liquid phase.
What are two changes of state for water that cause latent heat to be released?
When water vapor condenses into liquid water, latent heat is released. Similarly, when liquid water freezes into ice, latent heat is also released. These changes of state involve the release of latent heat because energy is being released as the water molecules transition to a lower energy state.
When water changes from a liquid to gas it must energy?
When water changes from a liquid to a gas, it must absorb energy in the form of heat. This heat causes the water molecules to gain enough energy to break the intermolecular bonds and escape into the gas phase. This process is known as evaporation.
Which changes occur during evaporation?
During evaporation, liquid water gains enough energy to break free from the surface of the liquid and turn into water vapor. This process involves the transfer of heat energy from the surroundings to the liquid. As a result, the liquid slowly decreases in volume and the temperature of the remaining liquid may decrease due to the loss of heat energy.
What is exchanged when water changes from one phase to another?
When water changes phases (solid, liquid, gas), energy is exchanged in the form of heat. For example, when water vapor condenses into liquid water, it releases heat into the surroundings; when liquid water freezes into ice, it absorbs heat from the surroundings.
Is condensation a energy loss or gain?
Condensation is typically considered an energy loss because it releases energy as heat when water vapor changes to liquid water. This energy is known as latent heat of condensation.
How does water vapor gain its energy?
Water vapor gains its energy primarily through the process of evaporation, where liquid water absorbs heat energy from its surroundings and changes into water vapor. This energy is needed to break the bonds between water molecules and allow them to escape into the air as vapor. Additionally, water vapor can also gain energy through condensation, where it releases heat energy as it changes back into liquid water.
Is energy released or absorbed when water changes state from a solid to a liquid to a gas?
Energy is absorbed when water changes state from a solid to a liquid to a gas. This energy is used to break the bonds between water molecules during melting and vaporization. It is known as the latent heat of fusion and latent heat of vaporization, respectively.
