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Water has three states
Solid (ice)
liquid (water)
gas (steam)
When water is heated it expands and when it is cooled it contracts until about 4 degrees Celsius when it begins to expand again.
So the answer to your question is it depends on what temperature the water is. If it is a liquid and over 4 degrees then it will expand. If it is not frozen but somewhere between 0 and 4 degrees it will contract until about 4 degrees and then expand. Under 0 degrees it is ice not water, over 100 degrees it is steam not water.
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What is the difference between heat of reaction and molar heat of reaction?
The heat of reaction is the total amount of heat released or absorbed during a chemical reaction, while the molar heat of reaction is the heat of reaction per mole of a substance involved in the reaction. The molar heat of reaction allows for comparison of the energy changes between different reactions on a per mole basis.
What is the type of heat reaction which occurs when heat is given off by the reaction?
An exothermic reaction is one in which heat is released or given off as a product of the reaction. This is often associated with a rise in temperature in the surrounding environment.
According to Le Chatelier principle what happens if heat is added to a system?
The reaction shifts to remove the heat APEX
What term describes a reaction in which heat is part of the reactants?
Endothermic reaction is a term that describes a reaction in which heat is part of the reactants. This means that the reaction absorbs heat from its surroundings to proceed.
How is heat included in the equation of an exothermic reaction?
Heat is written as a product of the reaction (apecs answer)
What is the difference between heat of reaction and molar heat of reaction?
The heat of reaction is the total amount of heat released or absorbed during a chemical reaction, while the molar heat of reaction is the heat of reaction per mole of a substance involved in the reaction. The molar heat of reaction allows for comparison of the energy changes between different reactions on a per mole basis.
What is heat of the reaction is releasesd?
If heat from a reaction is released, it is an exothermic reaction.
What is a heat reaction?
This the heat released during a chemical reaction.
Energy is lost from a reaction in a form of what?
Energy is lost from a reaction in the form of heat. This heat is often referred to as exothermic heat, as it is released from the system during the reaction.
How are endothermic reaction different from exothermic reaction?
Exothermic reaction: with release of heat Endothermic reaction: with absorption of heat
How does temperature affects reaction rate?
if the reaction is exothermic (creates heat) then adding heat will cause the reaction to run in the reverse direction if the reaction is endothermic (requires heat) then heat will speed it up
What happens in an endothermic reaction?
An endothermic reaction need heat to occur.
A reaction that absorbs energy is called?
Endothermic reaction. An endothermic reaction absorbs energy from its surroundings in the form of heat, causing a decrease in temperature.
A chemical reaction that gives off heat is most likely to be what?
An exothermic reaction is a chemical reaction that gives off heat. In an exothermic reaction, energy is released in the form of heat to the surroundings.
Does anybody know the formula for endothermic reaction and exothermic reaction?
An endothermic reaction absorbs heat from its surroundings, while an exothermic reaction releases heat to its surroundings. The general formula for an endothermic reaction is: reactants + heat → products, and for an exothermic reaction: reactants → products + heat.
What is a reaction in which heat is involved?
A reaction in which heat is produced is called exothermic. A reaction in which heat is absorbed (or one that produces cold) is called endothermic.
What does endothermic do?
An endothermic reaction is a reaction that absorbs heat. This is different from an exothermic reaction, such as combustion, which releases heat.
