Table of Contents
What makes the dissolving process exothermic or endothermic?
The process of dissolving can be endothermic (temperature goes down) or exothermic (temperature goes up). If it takes more energy to separate the particles of the solute than is released when the water molecules bond to the particles, then the temperature goes down (endothermic).
Is dissolving salt in water endothermic or exothermic?
Dissolution of NaCl in waterDissolution of sodium chloride in water is endothermic. Solute-solvent attractive bond formation (the exothermic step in the process of solvation) is indicated by dashed lines. “heat of solution.”
Is the solution process exothermic or endothermic?
To form a solution, energy is required to break the bonds between the particles within the solid or liquid. Heat energy is also required to break the bonds in a solvent to insert one of the molecules into the solution. Both of these processes are endothermic.
Which step is exothermic during the formation of the solution?
During the formation of solution, which step is always an exothermic process? We’re being asked to determine which step in the formation of a solution is always exothermic. Therefore, (b) the mixing of solute particles and solvent particles with one another is always exothermic during the formation of a solution.
What is the reverse process of endothermic?
The opposite of an endothermic process is an exothermic process, one that releases or “gives out” energy, usually in the form of heat and sometimes as electrical energy. Thus in each term (endothermic and exothermic) the prefix refers to where heat (or electrical energy) goes as the process occurs.
What is the first step in the dissolving process?
The first step in the dissolving process is endothermic. 2. The solute particles must separate form the other solute particles. This process also requires energy to overcome the forces of attraction between the solute particles.
Which reaction is always endothermic?
Therefore, evaporation is said to be a physical endothermic process rather than an endothermic reaction. Any process that absorbs heat from its surroundings is an endothermic process. Therefore, all endothermic reactions are endothermic processes.