Dissolving a solid in water is typically an exothermic process because energy is released when the solute particles mix with the solvent particles. The energy released usually comes from the formation of new intermolecular bonds between the solute and solvent molecules.
The change is endothermic.
Dissolving in water is a physical change.
Sublimation is an endothermic phase transition from solid to gaseous state.
No, a solid does not melt when it dissolves in a liquid. Melting involves a solid turning into a liquid due to heat, while dissolving involves a solid breaking down into smaller particles and dispersing in a liquid solvent without a change in state.
The process of dissolving is a physical change. This is because the process can be simply reversed. With a chemical change a new substance is formed and the process can not be simply reversed.
A solid is itself neither endothermic or exothermic. However the phase change from liquid to solid will likely be exothermic.
The change is endothermic.
The process of dissolving solid KBr in water and the resulting decrease in temperature is an exothermic reaction. This means that heat is being released to the surroundings during the dissolution process.
is dissolving a chemical or physical changeWell, it is not. Because you are not changing the chemical identity of the solid. It's still solid chemically and water chemically.
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.
Dissolving in water is a physical change.
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).
Sublimation is an endothermic phase transition from solid to gaseous state.
Yes. It would go from solid to aqueous.
Melting butter in a pan is an endothermic process. It requires energy input to break the bonds of the solid butter and convert it into a liquid state.
Even though dissolving some ionic solids is an endothermic process (requires energy input), it is still thermodynamically possible due to the increase in entropy that occurs when the solid breaks apart into individual ions in solution. The increase in entropy favors the dissolution process, even if it requires energy input to overcome the lattice energy holding the solid together.
No, a solid does not melt when it dissolves in a liquid. Melting involves a solid turning into a liquid due to heat, while dissolving involves a solid breaking down into smaller particles and dispersing in a liquid solvent without a change in state.