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The pressure of the gas is equal to a column of mercury of height 26.4 cm. (The pressure at the bottom horizontal line is equal on both sides of the tube. The pressure on the left is due to the gas and the pressure on the right is due to 26.4 cm Hg, or mercury.)
1. Figure 14.4.1 14.4. 1: (a) Gauges are used to measure and monitor pressure in gas cylinders. Compressed gases are used in many industrial as well as medical applications. (b) Tire pressure gauges come in many different models, but all are meant for the same purpose: to measure the internal pressure of the tire.
Pressure Measurement. The industrial process monitoring and control relies on precise monitoring of pressure conditions in liquid and gas containers. Even in closed systems, pressure losses must be promptly detected to ensure desired process quality and safety. Pressure measurement differentiates between mechanical and electronic methods.
Aug 21, 2023 · In this case, the distance between the liquid levels corresponds to the difference in pressure between the gas in the container and the atmosphere. Figure \(\PageIndex{4}\): A manometer can be used to measure the pressure of a gas. The (difference in) height between the liquid levels (h) is a measure of the pressure. Mercury is usually used ...
In this case, the distance between the liquid levels corresponds to the difference in pressure between the gas in the container and the atmosphere. Figure \(\PageIndex{4}\): A manometer can be used to measure the pressure of a gas. The (difference in) height between the liquid levels (h) is a measure of the pressure.
We know from Equation 10.1 that applying the same force to a smaller area produces a higher pressure. When we use a hose to wash a car, for example, we can increase the pressure of the water by reducing the size of the opening of the hose with a thumb. The units of pressure are derived from the units used to measure force and area.
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How do you measure the pressure of a gas?
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The pressure of a sample of gas is measured at sea level with an open-end Hg (mercury) manometer, as shown to the right. Determine the pressure of the gas in: (a) mm Hg (b) atm (c) kPa. Solution The pressure of the gas equals the hydrostatic pressure due to a column of mercury of height 13.7 cm plus the pressure of the atmosphere at sea level.
