Density depending on temperature © Siemens Stiftung 2018 CC BY-SA 4.0 international

Density depending on temperature

Image

Chart:
Density-temperature structure of water compared with benzol; comparison shows the density anomaly of water.

English, German
Image (50.1 kByte)
2018-10-05
Most substances have a continuous trend: the higher the temperature, the lower its density. In phase transitions (gas –> liquid –> solid) the density changes drastically in this temperature range. Water however has a density change at its freezing point. The density does not increase as one would generally expect but drops. The graphic shows the density-temperature behavior of "normal" substances (here benzol) as a contrast.

Information and ideas:
What could cause this behavior?
What practical importance does this anomaly of water have?
There are no other media directly related to this file.
Illustration
Chemistry; Physics
Grade 7 to 9; Grade 10 to 13
Middle/high school
Chart; Energy supply; State of aggregation
Siemens Stiftung Media Portal
MediaHouse GmbH
© Siemens Stiftung 2018
Stay up-to-date!

About four times a year, we inform you about new media on this portal as well as current studies and events related to OER and STEM.

Media Portal newsletter – register now

About four times a year, we inform you about new media on this portal as well as current studies and events related to OER and STEM.

*Required fields


Language

Liebe Nutzerin, lieber Nutzer,
El Portal de Medios – das spanische Medienportal – ist umgezogen und heißt nun CREA.
Auf CREA finden Sie weiterhin hochwertige Medien für den MINT-Unterricht und vieles mehr.

Dear User,
El Portal de Medios - the Spanish Media Portal - has moved and is now called CREA.
On CREA, you will continue to find high-quality media for STEM education and much more.

Estimado usuario, estimada usuaria,
El Portal de Medios – en español – ha sido trasladado y ahora se llama CREA.
En CREA seguirá encontrando medios de alta calidad para la enseñanza de STEM, y mucho más.

Zu CREA wechseln / Switch to CREA / Cambiar a CREA
CREA - El Portal de Medios para la Enseñanza STEM

Hierbleiben / Stay here / Quédate aquí:
Fenster schließen / Close window / Cerrar ventana