4E30.10 - Constant Volume Bulb - Absolute Zero Apparatus
Pressure vs. Temperature in a Gas at fixed Volume is demonstrated, with plotting an Absolute Zero Determination can be made.
When the metal flask is put into the different temperature water baths a large needle fluctuation should be observed. Plotting Temperature VS Pressure of different gases should allow you to make a determination of Absolute Zero.
Read the pressure at room temperature. Plunge the bulb into a bath of either cold water or liquid nitrogen. Record the pressure and temperature. Then plunge the bulb into a bath of hot water and record the pressure and temperature. From that, if plotted, a determination of absolute zero could be estimated.