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There are actually three changes of state that release energy. Liquid to solid, gas to liquid, gas to solid.
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∙ 9y ago
Wiki User
∙ 12y agoMelting and boiling.
An increase in temperature.
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∙ 13y agoTechnically, when a substance changes state, its temperature increases or decreases during that change. EX. gas to liquid is exothermic, meaning it gives off heat during the process.
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∙ 9y agoDepends on the substance. For example, water (at reasonable pressure) changes states at 100 degrees Celsius and a 0 degrees Celsius.
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∙ 11y agoFreezing & melting
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∙ 13y agofreezing/melting
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What two changes of state take place during distillation?
The two changes of state involved in freeze drying are melting and freezing.
Is it true melting is considered an sublimation change because energy is gained by substance as it changes stae?
Melting is a phase change in which a substance changes from the solid state to the liquid state. Sublimation is a phase change in which a solid moves directly into the gas phase. Both melting and sublimation are two types of physical change.
What are the two main uses of ATP?
-> store and release energy -> Transfer energy all in a cell
What observations does not indicate that a chemical change has occurred a. change of state b. formation of a precipitate c. absorption of energy d. release of a gas?
acually the answer depends on the nature of chemical reaction under consideration and depending on the reaction, there are two possible answers: a change of state and absorption of energy.
When the flashlight is turned on what energy changes?
A standard flashlight with an incandecent bulb converts electrical energy into two different types of energy; light energy and heat energy.
What are two changes in state the require the addition of latent potential energy?
Melting of solids and vaporization of liquids.
What two kinds of energy changes can take place during a chemical reaction?
Two types of energy changes that can occur in a chemical reaction are (1) endothermic and (2) exothermic. Endothermic is where energy is added to the system and exothermic is where energy is given off by the system.
What two things happen in a chemical reaction?
change in properties and changes in energy
What are the energy changes in bread toaster?
The thermal energy used to toast the bread changes to chemical energy
A fog forms over a lake. What two changes of state must occur to produce the fog Do the water molecules absorb or release energy during these changes of state?
First, water must evaporate from the lake. The water molecules absorb energy during evaporation. The water vapour in the air must condense to form the tiny water droplets that make up the fog. During condensation the water molecules release energy.
What two changes of state does this process involve?
In order to know what two changes of state are involved in a process one needs to know what the process is.
What two changes of state take place during distillation?
The two changes of state involved in freeze drying are melting and freezing.
What two conditions can change the state of matter?
1) melting-solid state changes into liquid state and 2)freezing-liquid state changes into solid state
What are two ways that energy changes form in a can?
One opening the can. Mechanical energy. The sound it makes is sound energy
What are two changes of states are involved in freeze-drying?
The two changes of state involved in freeze drying are melting and freezing.
What two of state are involved in freeze drying?
The two changes of state involved in freeze drying are melting and freezing.
When will IT Chapter Two release?
Unless it changes, it is slated to release on September 6, 2019
