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Ans. Thermometric Well Fig. 3.6 shows an arrangement which is used to measure the temperature of gas flowing through a pipeline. A small tube called thermometric well is welded radially into the pipeline.
The well is partially filled with some liquid and the thermometer is immersed into this liquid. When the temperature of the gas flowing through the pipeline is higher than the ambient temperature, the heat flows from the hot gases towards the tube walls along the well.
This may cause temperature at the bottom of well to become colder than the gas flowing around. Obviously the temperature indicated by the thermometer will not be the true temperature of the gas. The error in the temperature measurement is estimated with the help of the theory of fins.
The protective tube (well) can be considered as a hollow fin (internal diameter d,
thickness ö and length 1), and the temperature distribution obtained by using the relation applicable to a fin with tip insulated:
where is the temperature of the pipe wall, ta is the temperature of hot gas or air flowing through the pipeline, and is the temperature at any distance x measured from pipe wall along the thermometric well.
If x = 1 then,
where t1 is the temperature recorded by the thermometer at the bottom of well and represents error in temperature measurement.
The perimeter of the protective well P = and its cross-sectional area Therefore,
then,
What else can I help you with?
What is thermometric substance?
These are materials used in thermometer whoses property varies with temperature
What is the aim of a thermometric titration?
The aim of a thermometric titration is to measure the heat change that occurs during a titration reaction. This can be used to determine the endpoint of the titration, as it corresponds to the point of maximum or minimum heat change. Thermometric titrations are useful for studying reactions that do not produce a visible change in color or involve weakly-colored solutions.
What is the advantages of mercury as a thermometric substance?
Mercury has a wide temperature range, high thermal conductivity, and a linear expansion coefficient, making it suitable for precise temperature measurements. Additionally, it does not wet the glass surface, allowing for accurate readings.
What is a thermometric substance?
Ah, a thermometric substance is simply a material that is used to measure temperature. It's like a friend that helps us understand how hot or cold things are. Just like how different colors can bring a painting to life, different substances can help us understand temperature better. So, embrace the thermometric substances in your life and let them guide you towards a better understanding of the world around you.
How do you calculate concentration from a thermometric titration?
To calculate the concentration from a thermometric titration, you would plot a graph of temperature change against the volume of titrant added. The end point of the titration is indicated by the maximum or minimum point on the graph. By using the volume of titrant at the end point and the stoichiometry of the reaction, you can then calculate the concentration of the analyte.
What is a sentence for thermometric?
Helium gas was used as a thermometric fluid"
Is mass a thermometric property?
No, mass is not a thermometric property. Thermometric properties are characteristics that can be easily measured with a thermometer, such as temperature. Mass is a measure of the amount of matter in an object and is not related to temperature.
Why is mercury preferred to alcohol as a thermometric fluid?
what are the qualities of mercury over alchoholic as thermometric liquid
What is thermometric substance?
These are materials used in thermometer whoses property varies with temperature
What makes heat flow?
a thermometric property is
What are thermometric substance and example?
Thermometric substances are materials that are sensitive to changes in temperature and can be used to measure it. Examples include mercury, alcohol, and liquid crystal.
What is 'thermometric scale'?
A thermometric scale is a system for measuring temperature. It is typically defined by two fixed points, such as the freezing and boiling points of water, with increments marked between them. Common examples include the Celsius and Fahrenheit scales.
What is the aim of a thermometric titration?
The aim of a thermometric titration is to measure the heat change that occurs during a titration reaction. This can be used to determine the endpoint of the titration, as it corresponds to the point of maximum or minimum heat change. Thermometric titrations are useful for studying reactions that do not produce a visible change in color or involve weakly-colored solutions.
What are the properties of thermometric material?
when objects are heated or cooled, their temperatures change, along with some of their properties, these properties are known as Thermometric Properties. Examples include: when objects are heated, they expand, when they are cooled, they shrink. Another is, if an object is heated, its' gaseos pressure will increase and will decrease when object is cooled.Read more: What_are_thermometric_properties
What characteristics are thermometric properties expected to have?
varies with temp. in a reproducible way, rapid response , accurate
What is the liquid in thermometer's called?
Mercury the liquid inside thermometer is mercury.. but it is called thermometric liquid.
What is the importance of thermometric liquids?
Thermometric liquid is the liquid found in the thermometer that help in the up and down movement of the temperature.
