Hot water does not actually dissolve but evaporates into the air as steam rises. Steam consists of water molecules that the water is made up of. These are given off at a much faster rate than cold water which has to wait until the warmer air around it agitates the cooler molecules.
Sugar will dissolve faster in hot water than it will in cold water.
Copper sulfate will dissolve faster in hot water than in cold water. This is because higher temperatures increase the kinetic energy of the particles, allowing them to move more quickly and break down the crystal structure of the compound more rapidly, promoting dissolution.
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Factors that cause sugar to dissolve faster include increasing the surface area of the sugar (finer crystals dissolve faster), stirring or agitating the solution, raising the temperature of the solvent (hot water dissolves sugar faster than cold water), and increasing the concentration of the solvent (higher concentration can dissolve more sugar).
Regular table sugar is a covalent compound, which means that the bonds formed between the molecules are stronger than those formed in an ionic compound such as salt (sodium chloride). Since these bonds are stronger, they require more energy to break and dissolve into water. Hot water has more free energy than cold water, which allows the sugar to dissolve more easily than in cold water.
hot water has faster moving particales than cold water
Most chemical salts dissolve faster in hot water than in cold water.
Instant coffee granules dissolve faster in hot water than in cold water.
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Hot water does not dissolve. Neither does "cold". And, the grammatically correct question would be "Hot does hot water dissolve faster than cooler water."
Sugar will dissolve faster in hot water than it will in cold water.
Even in cold water sugar will dissolve eventually, but it does dissolve faster in hot water. Hot water molecules move faster than cold water molecules and therefore can more easily break sugar molecules out of solid sugar and into solution.