Tag results for nitrogen
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paramagnetism of oxygen
Bookmarked 732 weeks ago oxygen gas is condensed into liquid form and then poured between the poles of a strong magnet so we can observe its paramagnetic propertieswe send o2 gas through a copper coil which is then immersed in about 2 liters of very cold--77 degrees kelvin liquid nitrogen as the o2 travels through the coil it loses enough heat to change from a gas to a liquid and that liquid is collected in a small pre-cooled dewar liquid nitrogen is poured between the poles of the permanent magnet but since its diamagnetic properties lead to only a very weak interaction with the field it just sloshes through as if it were water the liquid oxygen on the other hand sticks between the poles of the magnet until it boils away because the oxygen molecule has an electronic structure that favors the non-cancellation of two of the electron spins its net magnetic moment is free to point in the direction of an external magnetic field just as a compass needle does when enough of these moments are aligned the material as a whole behaves like a single magnet at room temperature only a small fraction of the moments are able to line up perfectly with the external field but when oxygen is cooled and condensed into a liquid the effect is more noticeablefor more details on our setup see:http:sciencedemonstrationsfasharvardeduicbicbdokeyword=k16940ampamppanel=icbpagecontent2173903ar2413fname3dindepthhtml2cicbpagecontent2167563ar2413fname3dindepthhtmlampamppageid=icbpage91943ampamppagecontentid=icbpagecontent217390ampampstate=maximizelike us on facebook http:wwwfacebookcomnatscidemos |
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liquid nitrogen experiments: the balloon
Bookmarked 792 weeks ago what happens when a balloon full of air is plunged into a container full of liquid nitrogen yet more fun with liquid nitrogen closed captioned |
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let039s pour liquid nitrogen on the floor
Bookmarked 713 weeks ago liquid nitrogen on the floor who039s going to clean that mess upsee what really happens when one of the world039s most beloved cryogenic liquids comes into contact with a room temperature floor |
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4k starship wreaks havoc during liftoff - 60fps ultrawide - youtube
Bookmarked 153 weeks ago wowall images are explicitly owned by labpadre media and may not be used without written consent |