<span contenteditable="false" style="width:0px;height:0px;padding:0px;margin:0px;display:block;z-index:9999;color:#fff;position:absolute;font-size: 0px;line-height:0px;height:17px;width:17px;right:17px;background:url(https://assets.embibe.com/staging/assets_new/javascript/ckeditorcustomwiristoolbar/plugins/magicline/images/icon.png?t=I63G) center no-repeat #ff0000;cursor:pointer;top:-1px; border-radius: 0px 0px 2px 2px;" title="Insert paragraph here">&crarr; The substance that can flow easily is called a fluid. The fluid has no definite shape but has a definite volume. Liquids and gases are examples of fluids. Examples: Water, milk, juice, etc.

The process of conversion of a matter from its liquid state to gaseous state at specific conditions of temperature and pressure is called vaporisation. Vaporisation is of two types, evaporation and boiling. When the vaporisation occurs below its boiling point, it is called evaporation. Evaporation is a surface phenomenon and boiling is a bulk phenomenon.