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Do substances absorb or release heat energy as then change from a liquid to the solid phase?
Wiki User
∙ 14y ago
When a substance changes from a liquid to a solid it releases energy. (You take the heat out)
Wiki User
∙ 14y ago
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Explain why substances with hig specific heats take longer to heat up than substances wit the same mass which have low specific heats?
Type your answer here... A substance with high specific heat means it can absorb alot more heat energy before its temperature increases. A substance with low specific heat cannot absorb alot of heat energy so its temperature increases quickly because it cant absorb the heat. Remember there is a difference between Heat energy and Temperature. The ocean can absorb alot of heat energy but still feel like its cold in temperature. The tip of a needle can be at 1000 degrees temperature but there is hardly any actual heat energy in it because its so small.
Substances are changed into different substances when bonds break and form during?
Chemical bonds are made and broken by chemical reactions. After chemical bonds have been broken, then energy is released, and if a chemical bond is made, then energy is absorbed.
What is the name given to heat energy at melting point?
The heat energy required to change a substance between solid & liquid at constant temperature is called the "latent heat of fusion". If the change is from solid to liquid the substance gains this energy. If the change is from liquid to solid the substance gives up this energy. The exact amount of latent heat of fusion is different for different substances.
What is the measure of kinetic energy of a substances molecules?
temperature is the measure of the average kinetic energy of a substances molecules, though energy is in joules and temperature is in Kelvin.
A substance formed when two or more other substances are combined and a chemical change takes place?
A compound is formed when two or more other substances are combined and a chemical change takes place. Pure water would be an example of a compound.
When matter undergoes change of state what does it absorb or release?
Energy.
Can a change in matter neither release nor absorb energy?
Yes.
When matter changes can it absorb heat energy or release heat energy without a corresponding change in temperature?
no.
When most substances absorb heat energy they?
expand
Substances that absorb light are converted to what?
Thermal energy
Does vaporization absorb or release energy?
Vaporization absorb energy.
What Substances that absorb light convert it to what energy?
Optically active
Does the Calvin cycle release or absorb energy?
ABSORB
What does you eat?
Any edible substances that can be digested by the digestive enzymes,can be early absorb in the bloodstream and also assimilated through the process of oxidization to release energy.
Do cold packs absorb energy?
No, they release energy.
Do endergonic reactions absorb more energy than they release?
Yes, endergonic reactions absorb more energy than they release because it is positive energy which is absorbed.
When chlorophyll a molecules absorb energy the molecules?
release electrons and energy
