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Determining absolute zero. Scaling the Kelvin. Learning Outcomes. I can determine experimentally absolute zero I know the value of absolute zero I can convert between centigrade and kelvin and vice versa I can describe physically what absolute zero is
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Determining absolute zero Scaling the Kelvin
Learning Outcomes • I can determine experimentally absolute zero • I know the value of absolute zero • I can convert between centigrade and kelvin and vice versa • I can describe physically what absolute zero is • I can relate a gas law to the real world
Method • Determine the volume of air in the sealed syringe at various temperatures • Room temperature is done already. • You need at least four other data points for a reliable line of best fit. (min 5)
Conclusion and Evaluation • I determined absolute zero as ___________ K • The theoretical value is ____________K • The error in the experiment comes from______________ • __________________________ • __________________________ • __________________________
Absolute zero • The temperature at which atomic motion stops: there is no thermal energy • This is -273.15 oC or 0 K • Convert your table into kelvin and plot again
Straight line AND through the origin
Learning Outcomes • I can determine experimentally absolute zero • I know the value of absolute zero • I can convert between centigrade and kelvin and vice versa • I can describe physically what absolute zero is