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The liquid is held together by inter particular bonds. In water these are hydrogen bonds between the individual molecules of water. If these bonds did not exist then the water would not be a liquid it would always be a gas. All solids and liquids must have bonds between the particles. To change a liquid into a gas these bonds need to be broken. This is called the latent heat of vaporisation.
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Which of the changes of state shown in the figure require an increase in energy answers?
Evaporation uses energy to change from a liquid to a gas. Melting uses energy to change from a solid to a liquid. Condensation releases energy to change from a gas to a liquid. Freezing releases energy to change from a liquid to a solid.
Identify to changes of state that require energy to be used and two changes of state that require the release of energy?
Changes of state that require energy: melting (solid to liquid) and vaporization (liquid to gas). Changes of state that release energy: freezing (liquid to solid) and condensation (gas to liquid).
Which state changes require heat and which gives off heat?
Endothermic processes require heat to occur, such as melting and vaporization, because energy is absorbed from the surroundings. Exothermic processes give off heat, such as freezing and condensation, because energy is released to the surroundings.
What changes of state require energy?
Sublimation, melting, and vaporization are three changes of state which require energy.
What change in state requires an energy to be added to the substance?
The change from solid to liquid, liquid to gas, and solid to gas all require an input of energy to overcome intermolecular forces holding the particles together. This added energy breaks these forces, allowing the particles to move more freely and change state.
Does vaporizing require an input or energy?
Yes, vaporizing requires an input of energy to heat the substance to its vaporization point. This energy causes the substance to change from a solid or liquid state to a vapor or gas state.
What is the latent of vaporization?
The latent heat of vaporization is what is commonly referred to as boiling. This is the amount of energy require to change from a state of liquid to vapor.
What are two changes in state the require the addition of latent potential energy?
Two changes in state that require the addition of latent potential energy are melting and vaporization. When a solid melts into a liquid or a liquid vaporizes into a gas, energy is absorbed to overcome intermolecular forces and change the state of the substance without changing its temperature.
What change of state and what energy changes occur when water freezes?
the state change is from liquid to solid and the energy change is cold energy to heat energy
What are two changes in state that require the release of latent potential energy?
Two changes in state that require the release of latent potential energy are condensation, where gas turns into liquid and releases energy, and freezing, where liquid turns into solid and releases energy.
During which three changes of state is energy absorbed?
cchemical change and energy change also the change of a gas to a liquid
Does condensation require an input of energy?
No, condensation does not require an input of energy. It is the process in which a gas transforms into a liquid state by releasing heat energy. This heat energy is typically given off to the surroundings.
