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Archive for the ‘Gases’ Category

Cool Demo: Gases, Liquid Nitrogen, Clouds, and Thunder

Posted by Ryan On November - 17 - 2008 0 Comment
cloud-slide

In this demonstration, liquid nitrogen and hot water are mixed. We hear the temperature and volume relationship of gases as the gas expands creating “thunder”. This is just like when lighting creates thunder when the heat of the lightning expands the gas around it – the quick expansion creates a sound wave. The quick evaporation  [ Read More ]

Categories: Gases

Gases: Properties of Gases

Posted by Ryan On November - 8 - 2008 0 Comment
MrT-node

Gases have mass. Gases take up space. Gases can apply a force, which we call pressure. The atmosphere, or the air around us, is constantly applying pressure and has enough power to crush a can or to hold a suction cup into place.

Categories: Gases, States of Matter, Videos

Gases: Charles’s Law

Posted by Ryan On November - 7 - 2008 0 Comment
chemguy-node

Charles’ Law V1/T1 = V2/T2 At constant pressure, the volume of the gas varies directly with the temperature.Thus, as the temperature rises the volume will also rise.

Categories: Gases, States of Matter, Videos

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