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What has a change of state reaction that energy is endothermic?
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∙ 11y ago
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∙ 11y ago
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A change of state where energy is given off?
Endothermic Reaction. Exothermic is a chemical reaction in which energy must be provided.
What is a change of state that reacts when energy is endothermic?
An endothermic reaction is one that takes heat from its surroundings to increase the delta H or energy level. it causes the surroundings to lower in temperature as it absorbs heat from the surroundings e.g cooling packs. the change in state depends on what reaction is taking place, e.g melting ice cubes - solid to liquid boiling water - liquid to gas (they both absorb heat to occur)
Is the melting of candle wax and exothermic or endothermic change?
The answer is endothermic. The wax is absorbing heat energy, not producing it, and changing from a solid state to a liquid state. If the reactants require more energy than than they are putting out during the reaction, it is said to be endothermic (absorbing of heat). If the reactants give off heat of their own (self sustaining), then it is an exothermic reaction. There are components in some types of wax that will burn, in which case that is an example of an exothermic reaction, but most wax will stop once the heat source is removed.
Is melting of candle an exothermic or endothermic reaction?
It is exothermic. When you put your hand close to the burning candle, does the air feel cooler or warmer? If it feels cooler, then it is drawing in heat and is endothermic (endo = in). If it feels warmer, then it is giving off heat and is exothermic (exo = out). (If the system is gaining energy (heat) than it is endothermic, releasing energy is exothermic.)
An ice cube melts after being left on the table over an extended period of time Exothermic or endothermic?
The process of melting is endothermic because you are adding heat (or energy) to the object. When you add heat or energy to an object it begins to melt , Which tells you the object has reached its melting point or the temperature that the object melts at.
A change of state reaction that absorbs energy is endothermic?
yes it is endothermic
A change of state reaction of what Energy is endothermic?
absorbed
A change in matter in which energy is taken in is an endothermic change?
Its where heat is taken in in a reaction eg making a cake is an endothermic reaction as heat is taken in to start it ;)
A change of state where energy is given off?
Endothermic Reaction. Exothermic is a chemical reaction in which energy must be provided.
Which change of phase is endothermic?
is Absorbs If you are asking if a change of state is why a reaction may be endothermic, is not always true. It simply depends on what the change of state is to and what it is from, ex: a change from liquid to solid is usually exothermic because it losses energy as the particles slow down and draw near to eachother... and the opposite occurs from solid to liquid (or liquid to gas).
The change in which ice absorbs energy and melts is?
An endothermic change; or a change of state. Endothermic because it absorbs energy. Change of state because ti changes from a solid to a liquid.
Is sublimation exothermic or endothermic?
Sublimation is an endothermic phase transition from solid to gaseous state.
What is a change of state that reacts when energy is endothermic?
An endothermic reaction is one that takes heat from its surroundings to increase the delta H or energy level. it causes the surroundings to lower in temperature as it absorbs heat from the surroundings e.g cooling packs. the change in state depends on what reaction is taking place, e.g melting ice cubes - solid to liquid boiling water - liquid to gas (they both absorb heat to occur)
In an endothermic reaction are the products more or less stable than the reactants and explain your answer?
The products of an endothermic reaction are less chemically stable. They required an input of energy to create so naturally they are at a higher energy state.
Why is evaporization an endothermic?
Evaporization is an endothermic reaction which causes a substance to be released into the air. This is typically associated with the change from one state of matter to another like liquid to gas.
A change of state in which energy is removed from a substance is called an?
A change of state where energy is removed from a substance is called an exothermic reaction. This chemical reaction releases energy in the form of light or heat.
Is burning gasoline an exothermic process or an endothermic process?
Solid to gas (sublimation) is endothermic (takes in heat).In other words:A phase change from the solid state to the gas state is endothermic.Sublimation is endothermic (takes in energy).Heat energy must be provided to make it work.When there is a change of state from a solid to a liquid, a solid to a gas, or a liquid to a gas, at a constant temperature, the process is endothermic NOT exothermic. It requires energy to break the intermolecular forces that keep the molecules together, and that reduces the temperature - heat is taken in.
