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The three phase changes that require energy to be removed are condensation, freezing, and deposition. During condensation, gas transitions to liquid, releasing energy. Freezing occurs when a liquid changes to a solid, also releasing energy. Deposition is the direct transition from gas to solid, which releases energy as well.
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What are the types of phases change that require energy?
The types of phase changes that require energy are melting (solid to liquid), sublimation (solid to gas), and evaporation (liquid to gas). These phase changes require energy input to break the intermolecular forces holding the particles together in a particular phase.
What phase changes require the addition of energy?
Phase changes requiring the addition of heat energy are the phase changes from solid to liquid, liquid to gas, and solid to gas. These phase changes are termed melting (solid to liquid), evaporation (liquid to gas), and sublimation (solid to gas).
Which phase changes are endothermic?
Based on chemical properties exothermic phase changes are those that release energy. The exothermic phase changes are gas--> liquid, liquid --> solid, and gas--> solid. Looking at a phase diagram if you are going up the "stairs" the conversions require energy going down the "stairs" energy is released.
What is heat and phase changes?
Heat is a form of energy that is transferred between objects due to temperature differences. Phase changes are transitions between different states of matter, such as solid, liquid, and gas, which occur when heat is added or removed from a substance. These changes are governed by the energy exchange between molecules.
In order to change the phase of milk what had to be removed?
The heat energy in the milk had to be removed in order to change the phase of milk.
What are the phase changes that release energy?
Condensation
What is the difference between the heat of fusion and the heat of vaporization in terms of their effects on phase changes?
The heat of fusion is the energy required to change a substance from a solid to a liquid, while the heat of vaporization is the energy needed to change a substance from a liquid to a gas. Both are types of phase changes that require specific amounts of energy to occur.
What phase changes require the subtraction of heat energy?
Phase changes requiring the addition of heat energy are the phase changes from solid to liquid, liquid to gas, and solid to gas. These phase changes are termed melting (solid to liquid), evaporation (liquid to gas), and sublimation (solid to gas).
Where does the thermal energy go in such endothermic phase changes?
It is converted to bond energy
What changes of state have the most energy?
Changes of state that involve going from a solid to a gas state, such as sublimation, typically require the most energy. This is because it involves overcoming both the intermolecular forces holding the solid together and the potential energy barriers to separate the molecules into a gas phase.
When Water loses energy when it changes phase from?
Liquid to solid
What is the relationship between energy and phase changes?
During phase changes, energy is either absorbed or released in the form of heat. This energy is used to break or form intermolecular forces between particles. As a result, temperature remains constant during the phase change until all the substance has transitioned to the new phase.
