2. Differentiate between evaporation and boiling
Answers
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What is Evaporation?
Evaporation is a process where liquid turn into vapor. Example is “water evaporated from the soil”
What is Boiling?
Boiling means rapid vaporization of any liquid. It happens when a liquid is heated to its boiling point. The boiling occurs in three different stages such as nucleate boiling, transition boiling and film boiling. There are no stages for evaporation.
Evaporation vs. Boiling
Boiling occurs when the temperature of the liquid is greater than the boiling point of the substance. Evaporation can occur at any temperature. It occurs as long as the substance remains liquid at a particular temperature.
According to Greg Bradburn, evaporation occurs when there is an increased energy present and occurs rapidly. It occurs from the bottom of the container when allowed to boil. The bubbles form at the bottom of the container and then rise on top of the container. In boiling, bubbles do not form at the bottom and rise to the surface. Evaporation occurs at room temperature and therefore, occurs at a slower rate when compared to boiling.