Write the name of process when following change takes place (i) Molten iron is allowed to cool. (ii) Ethyl alcohol is heated over 76 ˚C. (iii) Wet clothes are spread out
1. When molten iron is allowed to cool, it will convert in solid from liquid. The process is called solidification.
2. Boiling point of ethyl alcohol is 78.37 ºC. So if we heat ethyl alcohol above 76ºC , it would start boiling and process is also called boiling.
3. When the wet clothes are spread out it get dry after some time. Changing of water from wet clothes to water vapour in atmosphere below its boiling point is called evaporation. So, the process is called evaporation.
2. Boiling point of ethyl alcohol is 78.37 ºC. So if we heat ethyl alcohol above 76ºC , it would start boiling and process is also called boiling.
3. When the wet clothes are spread out it get dry after some time. Changing of water from wet clothes to water vapour in atmosphere below its boiling point is called evaporation. So, the process is called evaporation.