- #1
mmh37
- 59
- 0
Hello everyone! I have trouble finding the answer to the following problem - this really bugs me. Can anyone give me a hint?
Here is the problem:
A vessel contains a hole of 0.1mm^2 above the liquid level (contains liquid mercury) at T=0°C. The vessel is contained within a very much larger vessel in which a very high vacuum is maintained. After 30 days it is found that 24mg of mercury have been lost from the inner vessel. The relative atomic mass of mercury is 201.
I have already calculated the average speed of the mercury atoms in the vapor to be
[tex] 169 m/s [/tex]
now the questions:
1) What is the mean rate of flow of mercury atoms through the hole?
2) hence calculate the vapour pressure at T=0°C
note:
the numerical answers are:
1) 2.76 * 10^13 atoms/sec
2) 2.5 * 10^(-2) N/m^2
Here is the problem:
A vessel contains a hole of 0.1mm^2 above the liquid level (contains liquid mercury) at T=0°C. The vessel is contained within a very much larger vessel in which a very high vacuum is maintained. After 30 days it is found that 24mg of mercury have been lost from the inner vessel. The relative atomic mass of mercury is 201.
I have already calculated the average speed of the mercury atoms in the vapor to be
[tex] 169 m/s [/tex]
now the questions:
1) What is the mean rate of flow of mercury atoms through the hole?
2) hence calculate the vapour pressure at T=0°C
note:
the numerical answers are:
1) 2.76 * 10^13 atoms/sec
2) 2.5 * 10^(-2) N/m^2
Last edited: