A block of ice at 0 degree celsius is placed in a room whose temperature is also 0 degree Celsius explain what will happen?
nothing
to melt the ice would require that heat be withdrawn from the room, but that would make the room colder than zero
When a block of ice at 0 degrees Celsius is placed in a room whose temperature is also 0 degrees Celsius, a few things will occur.
Firstly, there will be no change in temperature because both the block of ice and the room have the same temperature. Therefore, no heat transfer will take place between them in terms of temperature difference.
However, despite the lack of temperature change, there will still be some physical interactions between the block of ice and the room. The room and air molecules will collide with the surface of the ice, transferring energy through these collisions. This energy transfer is known as conduction.
During this process, the air molecules around the ice will gain some heat energy and will cool down slightly. Conversely, the ice block will also gain some heat energy, causing a small amount of the ice to melt. However, the overall temperature will remain at 0 degrees Celsius, as the melting process will occur at a constant temperature due to the heat of fusion.
Eventually, when the ice block reaches thermal equilibrium with the room, there will be no further changes. The ice will continue to melt slowly, but the temperature will remain constant at 0 degrees Celsius until all the ice has melted.