What is a pressure-temperature nomograph?
Estimate Boiling Point and Vapor Pressure Our Pressure-Temperature Nomograph tool is an application of the Clausius-Clapeyron equation, which assumes the heat of vaporization is a constant over a pressure range. The relation describes the slope of a plot of temperature against pressure.
What is the purpose of a pressure nomograph?
Question: A pressure-temperature nomograph relates the boiling point of a liquid to the external pressure and is useful for estimating the boiling point at reduced pressure if the boiling point at atmospheric pressure (760 torr) is known.
What is the relationship between vapor pressure and temperature?
As the temperature of a liquid or solid increases its vapor pressure also increases. Conversely, vapor pressure decreases as the temperature decreases. The vapor pressure of a liquid can be measured in a variety of ways.
How do you use nomograph for boiling point?
With the aid of a ruler, draw a line from 20 mmHg in the pressure graph (to the right), through 100°C in the middle graph (“boiling point corrected to 760 torr”, this is 1 atm), and where this line intersects the line to the left (“Observed boiling point”), take your reading which should be about 15°C.
How do you use a nomograph?
The nomograph is very simple to use: Locate capacity at the bottom of the graph, go vertically to the rotating speed, horizontally to TDH, and vertically to the pump specific speed. To obtain suction specific speed continue from the rotating speed to NPSHR and vertically to the suction specific speed.
What is meant by nomograph?
[ nŏm′ə-grăf′, nō′mə- ] n. A graph consisting of three coplanar curves, each curve graduated for a different variable so that a straight line cutting all three curves intersects the related values of each variable.
What does a nomograph measure?
nomogram, also called nomograph, calculating chart with scales that contain values of three or more mathematical variables, widely used in medicine, engineering, industry, and the biological and physical sciences.
What is a nomograph for dogs?
A nomograph is an estimate of the amount of antibody passed to a litter of pups from the mother via her colostrum. While this antibody is at higher levels, it is able to neutralize viruses such as canine parvovirus and canine distemper virus. Because of this neutralization, puppy vaccine can be blocked.
Which has lowest vapour pressure?
Mercury exerts the lower vapour pressure because of the strong bond among its atom.
What is meant by Nomograph?