The problem of how fast and slow ice melts, the factors that affect the speed of ice melting 8 facto

Depends on the volume, surface area of the ice.

and temperature differences, large ice cubes take longer to melt than small ones; The larger the surface area, the greater the contact area with water, and the faster it melts. The larger the temperature difference, that is, the higher the temperature of the water, the faster it melts, and the higher the temperature, the faster the heat transfer.

This problem should be discussed on a case-by-case basis, if you ignore the room temperature and do not discuss what the temperature in the air is, then, of course, the dissolution speed is fast at the bottom of the water, because the contact area is large, the heat transfer speed is fast, so the dissolution is fast; However, if the temperature in the air is very high, then it dissolves quickly on the surface of the water, because the specific heat capacity of the water is large, and the temperature must be lower than the temperature in the air, so the temperature difference between the ice and the air is very large, and the speed of heat transfer is much faster than in the water under the same situation.

The ice in the water should be a little faster. Because the air in the mineral water bottle is not conducive to convection in a small space, the melting sound of the ice cubes is small, and the sound of water is greater than that of the ice cubes. According to the principle of the rise of heat and the fall of cold in the thermal cycle, we know that the ice cube is in close contact with water, and the water is in close contact with the bottle wall, and the bottle wall is in close contact with the ambient temperature, which is more conducive to the thermal cycle.

As a result, the water in the bottle can bring more heat to melt the ice than the air in the bottle.

1. Adding salt (sodium chloride) to the ice can lower the melting point of the ice.

2. Pure water can condense (form crystals) at a temperature of 32 degrees Fahrenheit (0 degrees Celsius). Salt can interfere with the ability of water to crystallize (condense into ice). Therefore, spraying brine can melt the snow on the side of the road below 32 degrees Fahrenheit, and adding salt to make ice cream can give the ice cream a soft taste at temperatures below 32 degrees Fahrenheit.

There are 1 ways to make the ice cubes not melt easilyPlace the ice cubes in a low-temperature environment and lower the temperature so that the ice cubes do not melt easily. If it's average, try putting ice cubes in the fridge to maximize how long it will melt.

2.Place ice cubes in containers and submerge them with water so that the humidity around them is high to slow down the rate of melting. 3.

Cover the ice cubes, using the principle of thermal insulation, reduce the contact between the ice cubes and the air, and shorten the melting time. 4.By applying a thin layer of oil to the surface of the ice cubes, Liqiru uses the action of an oil film to prevent the evaporation of water and slow down the melting process of the ice cubes.

5.Place ice cubes in a container containing salt water to dilute the water around the ice cubes, slowing them down. The above methods can effectively extend the melting time of ice cubes, and the above strategies can be flexibly used according to the actual situation to make the ice cubes not easy to melt.

1. Whether the ice is pure: the melting point of impure ice will be higher than that of pure ice. If the transfer rate is a property of the ice itself, it does not change, and the transfer rate of pure and impure ice is not the same.

2. The temperature of ice: the temperature balance of the ice-water mixture is 0 degrees Celsius.

3. The temperature of the outer banquet: the higher the temperature, that is, the greater the temperature difference, the faster it will melt.

4. Light intensity: Although white absorbs the least heat and most of it is reflected, it will still absorb some of it.

5. Quality: The larger the melting, the longer it takes to melt, but it will not affect the melting rate.

6. Shape: The larger the surface area in contact with the air, the faster the melting speed.

7. The speed of air flow: the faster the flow speed of the air, the faster the evaporation, the faster the cooling, that is, the slower the melting.

8. Altitude: that is, the influence of atmospheric pressure, the volume expansion of crystals during solidification, the freezing point of Shouxiangcha decreases with the increase of pressure, of course, the premise is crystals.