(a) The tube of a mercury thermometer has an inside diameter of 0.140mm. The bulb has a volume of 0.255cm3. How far will the thread of mercury move when the temperature changes from 11.5oC to 33.0oC? Take into account expansion of the Pyrex glass.
(b) Determine a formula for the change in length of the mercury column in terms of relevant variables. Ignore tube volume compared to bulb volume.