Heating Curve For Water - GCSE Chemistry | kayscience.com

A heating curve is a graph for a substance being heated comparing time against temperature. The temperature remains constant when a state is changing, for example when a solid is melting into a liquid, or when a liquid is boiling into a gas.

As a solid is melting the temperature remains constant because the added energy is being used by the particles to break the attractive forces, so the temperature cannot increase. As the liquid is heated, the temperature rises as the particles absorb the heat energy causing them to move faster. As the liquid begins to boil the temperature remains constant, this is because the added energy is being used by the particles to break the attractive forces, so the temperature cannot increase.

[ashwinmaradia]

Thank you this video was really helpful😃

[davidlurie]

Excellent video, well explained, with lovely diagrams!

[beautifulworld]

Sir I have a doubt regarding the slopes in T-time curve particularly after the boiling phenomenon as vapours don't behave like ideal gas just after 100 degc, its specific heat is variable. So won't will it be a curve rather than st line. Pls correct me if im wrong. If its a curve then what will be its effect, like the increase of temperature in gas phase will be quicker than solid state or liquid state or not? Like increasing 10 deg c of vapour is quick or increasing 10 deg c of water is quick?

[ashwinmaradia]

I have a question. How does the temperature when it is 0 and 100 degrees stay constant?