What Happens When Water Reaches 100 Degrees Celsius? Understanding Boiling Explained
Learn what occurs when water hits 100°C, the science behind boiling, and its practical uses in cooking and sterilization.
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When water is heated to 100 degrees Celsius, it reaches its boiling point and undergoes a phase transition from liquid to gas, which we observe as boiling. During this process, bubbles of vapor form, rise to the surface, and burst, releasing steam. Boiling water is used for cooking, cleaning, and sterilization purposes due to its ability to kill bacteria and other pathogens.
FAQs & Answers
- Why does water boil at 100 degrees Celsius? Water boils at 100 degrees Celsius because this is the temperature at which its vapor pressure equals the atmospheric pressure, causing it to transition from liquid to gas.
- What is the significance of boiling water in cooking? Boiling water cooks food efficiently and also sterilizes utensils and kills harmful bacteria, making it essential in food preparation and hygiene.
- Does water always boil at 100 degrees Celsius? Water boils at 100 degrees Celsius at standard atmospheric pressure (sea level). However, at higher altitudes where pressure is lower, water boils at lower temperatures.
- What changes occur to water molecules when heated to boiling point? At boiling point, water molecules gain enough energy to break intermolecular bonds and change from a liquid state to vapor, forming bubbles and steam.