What Is the Resistivity of Pure Steam?

[assume]

I am working on a Project that involves determination of Quality of Steam. In that I have few queries, so please help if possible:

1. Is there any mathematical relationship between Resistivity of water and temperature? because i am not able to find one, but since i am working on this project, so by doing practical I found that: Resistivity of water decreases with increase in temperature, but I am not able to find any mathematical relationship?

2.What is the resistivity of pure steam?
I read on the net, that steam has infinite resistance, but infinite does not exist so there must be some value ( may be in Mega ohm, giga ohm, etc); I am looking for that value?

Thanks.

 

[Redbelly98]

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[sir-pinski]

In response to your questions, here are some possible explanations:

1. Yes, there is a mathematical relationship between resistivity of water and temperature. This relationship is known as the temperature coefficient of resistivity and it measures the change in resistivity with respect to temperature. The formula for the temperature coefficient of resistivity is: α = (ρt2 - ρt1)/(ρt1 x (t2 - t1)), where α is the temperature coefficient, ρt1 is the resistivity at temperature t1, ρt2 is the resistivity at temperature t2, and t1 and t2 are the two temperatures being compared. The temperature coefficient can vary depending on the type of water (e.g. distilled, tap, etc.) and its impurities. Generally, the higher the temperature, the lower the resistivity.

2. The resistivity of pure steam is indeed infinite, as it is a gas and does not conduct electricity. However, if you are working on a project that involves determining the quality of steam, you may be interested in the resistivity of impure steam. This can vary depending on the impurities present in the steam, but it is typically in the range of 10-1000 megaohm-cm. Keep in mind that this value is not a direct measure of the quality of steam, as other factors such as temperature and pressure also play a role in determining steam quality. It is important to consider all these factors when assessing the quality of steam for your project.

I hope this helps answer your questions. If you have any further queries, please let me know. Good luck with your project!