Scaling the Kelvin

# Scaling the Kelvin

## Scaling the Kelvin

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##### Presentation Transcript

1. Determining absolute zero Scaling the Kelvin

2. 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

3. Charles Law

4. ?

5. 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)

6. Conclusion and Evaluation • I determined absolute zero as ___________ K • The theoretical value is ____________K • The error in the experiment comes from______________ • __________________________ • __________________________ • __________________________

7. 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

8. Straight line AND through the origin

9. 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