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by RWallace on January 28th, 2004

RWallace

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What is meant by "absolute zero"? Has it ever been this cold?

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  • by saratchandra on March 10th, 2005

    saratchandra

    As the temperature decreases, the pressure of a gas also decreases. When a graph is drawn with temperature in celcius scale on x-axis and pressure of the gas on y-axis,it will be a straight line which when extended touches the temperature axis at -273.16 celcius which is called ABSOLUTE TEMPERATURE. Here,the graph is drawn for limited number of temperatures and extended to give the absolute temperature.But some scientists believe that the graph is a straight line upto a certain temperature and it changes it's slope after that temperature. So its value may be even lesser than -273.16 celcius. It has never been achieved before. But scientists are reaching nearer to it.

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