Why does the lake smoke in winter?

Smoking is caused by the evaporation of water into steam. Because the outdoor temperature is very low in winter, and the temperature in water is relatively high (because of the large specific heat capacity of water, the temperature in the water will not drop so quickly with the outdoor temperature, so the temperature in the morning is higher than the outdoor temperature), so the water evaporates into steam because of the high temperature, which is "smoking".

Extended data

First, water evaporates.

Water evaporation refers to the process that water on the water surface changes from liquid to gas and escapes from the water surface. Water evaporation includes two processes: evaporation of water and diffusion of water vapor.

Second, the influencing factors of water surface evaporation

1, temperature. With the increase of water temperature, the movement speed of water molecules will accelerate, so it is easier to leave the water surface, so the evaporation on the water surface will increase with the increase of water temperature.

2. Wind speed. Wind can strengthen the convection and exchange between the air, so that the water vapor molecules above the water surface are constantly taken away, thus ensuring that the evaporation surface and the air always maintain a certain water vapor pressure difference, so that evaporation can continue.

Baidu encyclopedia-water surface evaporation