Question

Отличие кипения от испарения

Answer 1

Кипение происходит при температуре 100 градусов цельсия, а испарение происходит при любой температуре окружающей среды.

Answer 2

Difference between Boiling and Evaporation

Boiling and evaporation are both processes by which a substance changes from a liquid state to a gaseous state. However, there are some key differences between the two processes.

Evaporation is the process by which a liquid changes to a gas at a temperature below its boiling point. It occurs at the surface of the liquid and is a slow process. During evaporation, only the molecules at the surface of the liquid gain enough energy to escape into the gas phase. The remaining molecules in the liquid continue to lose energy and the temperature of the liquid decreases. Evaporation can occur at any temperature, even at room temperature, as long as the liquid is exposed to air or a suitable environment.

Boiling, on the other hand, is the process by which a liquid changes to a gas at its boiling point. It occurs throughout the entire volume of the liquid and is a rapid process. When a liquid is heated to its boiling point, the molecules throughout the liquid gain enough energy to overcome the intermolecular forces holding them together and escape into the gas phase. Boiling only occurs when the temperature of the liquid reaches its boiling point.

In summary, the main differences between boiling and evaporation are:

1. Temperature: Evaporation can occur at any temperature, while boiling occurs at the boiling point of the liquid. 2. Speed: Evaporation is a slow process that occurs at the surface of the liquid, while boiling is a rapid process that occurs throughout the entire volume of the liquid. 3. Energy: During evaporation, only the molecules at the surface of the liquid gain enough energy to escape into the gas phase, while during boiling, the molecules throughout the liquid gain enough energy to escape.