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What is the enthalpy of dissolution of NaCl in water?
The enthalpy of dissolution of NaCl in water is the amount of heat energy released or absorbed when NaCl dissolves in water.
What is the heat solution of calcium chloride?
The heat of solution for CaCl2 is -176,2 cal/g.
Is reaction of white copper sulphate with water exothermic or endothermic?
The reaction of white copper sulfate with water is exothermic because it releases heat as it dissolves in water. This heat is generated due to the breaking of bonds between the copper and sulfate ions in the solid compound.
Does salt melt in hot water?
Yes, salt dissolves in hot water. The heat will speed up the dissolution process, causing the salt crystals to break down and mix with the water molecules.
Why is SO3 insoluble in water but soluble in sulphuric acid?
SO3 reacts with water to form sulfuric acid, which then dissolves in water. This reaction is highly exothermic and produces a lot of heat. Therefore, SO3 is not directly soluble in water but dissolves in sulfuric acid, which acts as a solvent for it.
How much heat is released when 200 grams of sodium hydroxide dissolve in water?
When 200 grams of sodium hydroxide dissolves in water, approximately 42 kJ of heat is released. This process is exothermic, meaning it releases heat energy as the ionic compound dissolves.
What is the enthalpy of dissolution of NaCl in water?
The enthalpy of dissolution of NaCl in water is the amount of heat energy released or absorbed when NaCl dissolves in water.
What is the heat solution of calcium chloride?
The heat of solution for CaCl2 is -176,2 cal/g.
Is reaction of white copper sulphate with water exothermic or endothermic?
The reaction of white copper sulfate with water is exothermic because it releases heat as it dissolves in water. This heat is generated due to the breaking of bonds between the copper and sulfate ions in the solid compound.
Why is heat generated when methanol dissolves in water?
If heat is generated during a chemical process, this indicates that it is an exothermic reaction.
The heat energy absorbed or released when a specific amount of solute dissolves in a solvent is the?
The heat energy absorbed or released when a specific amount of solute dissolves in a solvent is called the heat of solution or enthalpy of solution. It represents the overall energy change associated with the dissolution process.
When a substance is dissolved in water the temperature of the water increases this process is known as?
This process is known as an exothermic reaction. When a substance dissolves in water, energy is released in the form of heat, causing the temperature of the water to increase.
Does salt melt in hot water?
Yes, salt dissolves in hot water. The heat will speed up the dissolution process, causing the salt crystals to break down and mix with the water molecules.
Why is SO3 insoluble in water but soluble in sulphuric acid?
SO3 reacts with water to form sulfuric acid, which then dissolves in water. This reaction is highly exothermic and produces a lot of heat. Therefore, SO3 is not directly soluble in water but dissolves in sulfuric acid, which acts as a solvent for it.
How do cold packs work?
Instant hot and cold packs are used by athletes to quickly and conveniently treat an injury. They last for about 20 minutes. The packs take advantage of chemicals that either absorb a lot of heat or release a lot of heat when dissolved in water. When a chemical process absorbs a lot of heat it is called endothermic. When heat is released, it is called exothermic. In cold packs, ammonium nitrate is used because it absorbs a lot of heat when it dissolves in water. The water and ammonium nitrate are in separate compartments in the pack. When the cold pack is needed, the chambers are broken and the ammonium nitrate dissolves in the water, absorbing heat and making the pack as cold as 0C. In hot packs, calcium chloride or magnesium sulphate are used, along with the water. They release heat when the chambers are broken and the chemical dissolves in the water. A hot pack can reach a temperature of 90C. :)
How do you make a crystal disapper in water?
To make a crystal disappear in water, you can crush the crystal into a fine powder so that it dissolves quickly in the water. As the crystal dissolves, it will become less visible. Alternatively, you can heat the crystal until it melts and then mix it into the water until it dissolves completely.
Why salt dissolves best in hot water?
Heat has more energy, so salt dissolve faster in hot water, because there is more heat and more energy.
