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First of all, "heat is decreased" means the container in which you are trying to dissolve something is being cooled down. When molecules heat up they gain energy and move faster. If you are trying to dissolve sugar in water, for instance, heating up the water will cause its molecules to move faster and collide with the sugar crystals, which have many molecules in them, more often. This means the crystals break up faster, and the sugar dissolves faster. Conversely, if "heat is decreased" the water molecules slow down and don't have as much energy. They don't collide with the sugar crystals as often and the sugar doesn't break up as fast. End result: decreasing the heat means dissolving takes longer. Increasing means dissolving is faster.
What else can I help you with?
Is salt dissolving in water an example of an endothermic reaction yes or no?
No. The dissolving of salt in water is an exothermic process because it releases energy in the form of heat.
Is dissolving sugar in heat nonspontaneous?
Dissolving sugar in water is a spontaneous process as it increases the entropy (disorder) of the system. The increase in entropy overcomes the small decrease in enthalpy to make the overall process spontaneous.
What is the difference between melting vs dissolving?
Melting is a physical process where a solid turns into a liquid when heat is applied, such as ice melting into water. Dissolving is a chemical or physical process where a solid substance disperses uniformly in a liquid to form a solution, like sugar dissolving in water.
What is dissolvement?
Dissolving is when something is gone. When you mix salt into water, the salt will eventually get smaller and smaller until it is gone. You say 'The salt has dissolved' when the element/compound is gone.
Does heat effect when dissolving salt?
Yes, heat can speed up the process of dissolving salt in water because it increases the kinetic energy of the salt particles, causing them to move faster and break apart more easily. However, once the salt is fully dissolved, the temperature does not affect the amount that can be dissolved in a solution.
What happens to the temperature of the system when the heat energy is decreased?
It drops.
What is the term for Heat taken or released in a dissolving process?
I suppose that these are synonyms.
Is the dissolving of calcium chloride endothermic or exothermic?
The dissolving of calcium chloride in water is exothermic, meaning it releases heat. This is because the process of dissolving calcium chloride is accompanied by the breaking of ionic bonds, which releases energy in the form of heat.
Effect of common salt on ice?
Dissolving a salt (NaCl, CaCl2) in water the heat of dissolution is released and the melting point of ice is then decreased.
What three ways will speed up the dissolving process?
1. You can stir it 2. You can heat it up so it boils 3. You can crush the material you are dissolving.
Is salt dissolving in water an example of an endothermic reaction yes or no?
No. The dissolving of salt in water is an exothermic process because it releases energy in the form of heat.
What effect does sunlight have on the rate of the dissolving process?
In a basic form sun light produces heat, heat act's as a catalyst which speed's up chemical reaction. SO in a nut shell sunlight makes the dissolving process occur more rapidly.
Do melting and dissolving have the same meaning?
Melting and dissolving are not the same. Melting is the process of a solid turning into a liquid due to heat, while dissolving is when a solid substance mixes with a liquid to form a solution.
When dissolving a solid in liquid heat does what the rate of dissolving?
increases
Is dissolving sugar in heat nonspontaneous?
Dissolving sugar in water is a spontaneous process as it increases the entropy (disorder) of the system. The increase in entropy overcomes the small decrease in enthalpy to make the overall process spontaneous.
What is the difference between melting vs dissolving?
Melting is a physical process where a solid turns into a liquid when heat is applied, such as ice melting into water. Dissolving is a chemical or physical process where a solid substance disperses uniformly in a liquid to form a solution, like sugar dissolving in water.
A cold pack may contain water and a solute that absorbs heat when it is dissolved. Which term describes the dissolving process for this solute and solvent?
The dissolving process for the solute in the solvent is called "dissolution." During dissolution, the solute particles disperse throughout the solvent, resulting in a solution. In the case of a cold pack, the solute absorbs heat from the surroundings, leading to a cooling effect as the dissolution occurs.
