32 degrees F (or 0 C)
the temperature increases
This is a strange question. Water boils usually at 100 degrees Celsius and freezes at 0 degrees Celsius. Who understands this question? I think you mean "If a substance changes from solid to liquid when the temperature exceeds 100 degrees, will it change from liquid back to solid when cooled to below 100?" Yes, it will.
molecules are dense in water, heat can be gather faster for melting than while in the air.
For example, it takes some energy (heat energy) to convert ice, at zero degrees, to water, also at zero degrees. While heat energy is added, the ice melts, but its temperature doesn't increase. The heat is used up, in a sort of potential energy - i.e., to break bonds between adjacent water molecules. The amount of heat required is specified per unit of mass. As an example, the latent heat of fusion of water is 334 kJ/kg, that is, it requires 334 kilojoule of energy to melt one kilogram of ice. "Melting" is the same as fusion in this context. "Vaporisation" is the same basic idea, but to convert a liquid to a gas - for example, liquid water to water vapor.
At standard pressure, pure water and ice are in equilibrium at zero Celsius.
as you might be knowing that freezing and melting point of ice(water) is same the only difference is that when water freezes it gives out its heat whereas while melting it absorbs the heat . so when the ice is melting its temperature remains zero degree .
It will stay the same
It will stay the same
Usually from the surrounding air, meaning that while the ice melts, the surrounding air will cool down. Or water, if the ice is in water.Usually from the surrounding air, meaning that while the ice melts, the surrounding air will cool down. Or water, if the ice is in water.Usually from the surrounding air, meaning that while the ice melts, the surrounding air will cool down. Or water, if the ice is in water.Usually from the surrounding air, meaning that while the ice melts, the surrounding air will cool down. Or water, if the ice is in water.
False.The original answer (now deleted ) said that the melting of ice is an endothermic reaction.If you need to convince yourself of this, take half a glass of water at room temperature. Put in a thermometer, wait a while, then record the temperature.Now add a few ice cubes; wait a while, then check the temperature again. If the melting of ice were an exothermic process, the water would then be warmer. Since you will actually find the water to be cooler, it is an endothermic process.
It depends on the metal. For example, Iron (Fe) has a melting temperature above 2000 degrees F, while Aluminum (Al) has a melting temperature below 2000 degree F. Moreover, Lead (Pb) has a temperature considerably lower then both Iron and Aluminum.
well ionic substances are solid at room temperature,they are generally soluble in water ,they have high melting and boiling points,while covalent substances are generally liquid and gases at room temperature,non-polar covalent substances are generally insoluble in water while polar covalent are generally soluble in water
The heat going into the ice initially breaks the hydrogen bonds between water molecules, during which the temperature remains constant. Once the hydrogen bonds are broken, the heat will go into melting the ice and the temperature will increase.
No. The temperature does not change during the melting process. All of the heat energy is used to break the bonds of the solid to form a liquid, i.e. the energy is used in the phase change, and thus is not used to raise the temperature.
The temperature of the entire lake must drop to 4 degrees celsius where water reaches its maximum density. This is called Autumnal Turnover. The water cools from the surface and sinks while the warm water, at depth, rises carrying nutrients. Once the turnover stops, the water on the surface can cool to the freezing point at 0 degrees celsius.
Warm blooded animals all have some ability to regulate their body temperature. Depending on the surrounding temperature, at some point the body temperature will be the same as the plant temperature. But when the surrounding temperature changes, the plant's temperature will change with it, while warm blooded animals will stay at the same temperature.
True. Saturated fats have a higher melting point and tend to be solid at room temperature, while unsaturated fats have a lower melting point and are typically liquid oils at room temperature.