When the hot iron touches the water, the temperature of the water rises. As water approaches its boiling point, some water molecules attain sufficient kinetic energy to reach velocities that allow them to temporarily escape from the liquid to the space above the surface before falling back into the liquid.
What happens when you put a hot object in cold water?
When a hot object comes into contact with a cold object, the hot object’s faster-moving particles collide with the cold object’s slower-moving particles. This transfers energy. This accelerates the particles in the cold object and decelerates the particles in the hot object.
Is it harmful to switch from hot to cold water?
Some do this because the spa is getting too hot, while others do it to make their pool water a little cooler. … When done correctly, immersion between hot and cold water (commonly referred to as contrast bath therapy) is perfectly safe.
What happens when you pour water on hot metal?
This lowers the water temperature. When the hot metal disks are placed in water at room temperature, the faster-moving metal atoms collide with the slower-moving water molecules, causing the water molecules to move slightly faster. This leads to an increase in water temperature.
What happens when you cool hot metal?
If you cool a molten metal very quickly, it forms a metallic glass. …You could be referring to fractures that could be caused by the rapid shrinkage of metal as local areas experience large temperature gradients.