(i) Suppose you want to dry your school uniform quickly. Would spreading it near an anghiti or heater help you? If yes, how?
(ii) Take out a cool bottle of water from the refrigerator and keep it on a table. After some time you notice a puddle of water around it. Justify.
(i) Suppose you want to dry your school uniform quickly. Would spreading it near an anghiti or heater help you? If yes, how?
(ii) Take out a cool bottle of water from the refrigerator and keep it on a table. After some time you notice a puddle of water around it. Justify.
(i) Yes, to dry the school uniform quickly, the uniform is spread near an anghiti or heater because evaporation is rapid at a higher temperature. Higher the temperature faster is the rate of evaporation. So the uniform is dried up quickly.
(ii) The cooled water bottle has a very cold exposed surface. Due to the cool surface, there is condensation of water vapour from the air on the surface of the water bottle because water vapour is present in the atmosphere. The condensed water molecules spread around the bottle. So a puddle of water is noticed after some time.
(i) Yes, to dry the school uniform quickly, the uniform is spread near an anghiti or heater because evaporation is rapid at a higher temperature. Higher the temperature faster is the rate of evaporation. So the uniform is dried up quickly.
(ii) The cooled water bottle has a very cold exposed surface. Due to the cool surface, there is condensation of water vapour from the air on the surface of the water bottle because water vapour is present in the atmosphere. The condensed water molecules spread around the bottle. So a puddle of water is noticed after some time.
