During the condensation process, cloud growth occurs as water vapor condenses into tiny water droplets or ice crystals around condensation nuclei. These cloud droplets continue to grow in size through a process known as coalescence. As they collide and merge, larger droplets form. When these droplets become heavy enough, they fall as precipitation, contributing to rainfall or other forms of precipitation like snow or hail.
Enter the initial size of cloud droplets (in micrometers) to calculate the size after coalescence: