Consider a mercury-in-glass thermometer. The capillary tube has a diameter of 0.004cm, and the bulb has a diameter of 0.25cm. Suppose that the mercury just fills the bulb at 0.00°C. Neglecting the expansion of the capillary tube so that its cross sectional area is constant, find the change in height of the mercury column if the temperature drops from 23°C to 9°C.

Question

anonymous · Answer

This has something to do with the volume of a cylinder right?

anonymous · Answer

Do you have a diagram

anonymous · Answer

I don't have an image of it if that's what you mean.

anonymous · Answer

l think this requires surface tension equesions

anonymous · Answer

I can't seem to solve it actually. Either this lacks data or I lack the current knowledge to answer this. Would I be able to, assume I only have knowledge in thermodynamics?

anonymous · Answer

assuming*

anonymous · Answer

I'm close to dissing this question as something that lacks data. Anybody out there who could help me? This has been up for so long already, haha.

anonymous · Answer

Vfinal = Vinitial + deltaV, this is almost the same problem but in this example it assumes that the expansion of the glass is neglected: http://www.solvemyproblem.net/Webed/forum/thread.asp?tid=1130 since in the given problem the only neglected is the capillary tube so therefore we still need to consider the expansion of the bulb.