Fluid Mechanics : Ice cube melting and Surface Energy Que.

Thread starter harshil.lodhi
Start date May 11, 2010
Tags

Cube Energy Fluid Fluid mechanics Ice Mechanics Melting Surface Surface energy

In summary, the surface energy, temperature difference, shape, type of liquid, and pressure all play a role in the melting rate of an ice cube. The surface energy decreases as the ice cube is exposed to a warmer environment, resulting in a faster melting rate. The temperature difference between the room and freezer affects the thermal energy transfer, with a warmer room temperature leading to a faster melting rate. The shape of the ice cube can also impact its melting rate, with a larger surface area resulting in a faster transfer of energy. The type of liquid surrounding the ice cube also affects the melting rate, with liquids with higher thermal conductivity leading to a faster melting rate. Additionally, applying pressure to an ice cube can lower its melting point, causing it to

May 11, 2010

harshil.lodhi

I have a que.
if a ice cube is placed in a container containing liq on which it is floating.
then is it possible that after ice melts, water level rises in vessel in any particular case.

Does heat evolves when water rises in a capillary. and how much heat is evolved in height of liq in capillary is h.

Hoping for a explanation.

Physics news on Phys.org

May 26, 2010

harshil.lodhi

no one knows strange.

Related to Fluid Mechanics : Ice cube melting and Surface Energy Que.

1. How does the surface energy of an ice cube affect its melting rate?

The surface energy of an ice cube plays a significant role in its melting rate. This energy is the force that holds the molecules of the ice cube together. When the ice cube is exposed to a warmer environment, the surface energy decreases as the molecules start to vibrate and break apart. This leads to a faster melting rate.

2. Why does an ice cube melt faster in room temperature compared to a freezer?

The temperature difference between the room and the freezer affects the thermal energy transfer, which is the process responsible for melting. In a warmer room temperature, there is a greater temperature difference between the ice cube and the surrounding environment, leading to a faster transfer of energy and a faster melting rate.

3. How does the shape of an ice cube affect its melting rate?

The shape of an ice cube can affect its melting rate. A smaller surface area to volume ratio, such as a sphere, will melt slower compared to a larger surface area to volume ratio, such as a flat cube. This is because the larger surface area allows for more contact with the surrounding environment, leading to a faster transfer of energy and a faster melting rate.

4. Does the type of liquid surrounding the ice cube affect its melting rate?

Yes, the type of liquid can affect the melting rate of an ice cube. Liquids with a higher thermal conductivity, such as water, will transfer energy more quickly to the ice cube, leading to a faster melting rate. On the other hand, liquids with a lower thermal conductivity, such as oil, will transfer energy at a slower rate, resulting in a slower melting rate.

5. How does pressure affect the melting point of ice?

According to Le Chatelier's principle, increasing pressure on a substance will lead to a decrease in its melting point. This means that applying pressure to an ice cube can lower its melting point, causing it to melt at a lower temperature. This is why ice skates can glide on ice - the pressure from the blades causes the ice to melt, creating a thin layer of water for the skates to slide on.