The actual pressure should be the absolute pressure of the operation is 8 KPa, what is the pressure?

Absolute pressure in a vacuum.

0kpa, standard atmospheric pressure.

The absolute pressure is about 100kPa=, which is equivalent to a gauge pressure of 0, and the so-called gauge pressure refers to the pressure displayed on the ordinary pointer pressure gauge, and this value is the measured pressure and ambient atmospheric pressure.

of the poor. Gauge pressure means that the detection pressure is lower than the ambient atmospheric pressure, but the absolute pressure is.

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The absolute pressure is 8kpa, which is the gauge pressure. This sentence should be understood in this way. We usually talk about gauge pressure, which is the data measured in the atmosphere.

In other words, the pressure of the air in front of you is now zero, which is the benchmark used by most of our pressure gauges. But there is no doubt that air is a fact. In terms of engineering, the standard situation is that 1 cubic meter of air weighs so if you seal a container, the air inside is also there, and I think you can understand this.

However, if you pump out the air in it with a vacuum pump, if there is nothing left, (in fact, it cannot be absolute) the pressure inside. Or a vacuum of 100. It has an absolute pressure of 0MPa and of course 0kpa.

The absolute pressure is 8kpa, and the gauge pressure needs to be adjusted to the same unit by subtracting 8kpa, and the above number is obtained.

1MPa is also called 1 million pascals, and 1 kilogram pressure is 100,000 pascals. 8kpa is 8000 Pa. Therefore, it is the kilogram.

In engineering, there are still people who often use these non-standard units. 8 kg pressure, in numerical terms, is 8kgf cm.

Converted to an international standard pressure unit, equal to:

8× n/cm² ×10000cm²/m²= 784800 n/m²

kpa mpa

mpa

The pressure of 8 kilograms often referred to by workers refers to the conversion of the old pressure unit and the new unit.

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Approximately. Strictly speaking, MPA is a unit of pressure, and kilogram is a unit of mass. Generally, it is customary to refer to all the pressure per square meter, 1MPa = 1 * 1000000Pa, 1 Pa = 1 Newton per square meter, 1 kg pressure = 1 kg * Newton per square meter.

1 megapascal is 10 kg 1kg = 1m2 = 10000cm2 So 1kg cm2 = 98kpa= people approximate DAO1MPa = 10kg cm2 in engineering, that is, people often say that 1 megapascal is 10 kg.

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We know from fluid mechanics that 1MPa = 10 kg pressure, 8 kg is, and is talking about net pressure. Relative pressure.

8 kg pressure is almost equivalent to pressure.

1MPa is equal to 10 kg pressure 1MPa = 10 6Pa, 1 kgf square centimeter = 10 Newton 10 -4 square meters = 10 5 Newtons square meter = 10 kgf square centimeter. So 8MPa equals 80 kg pressure.

The pressure of eight kilograms often referred to by workers refers to the pressure of how many mpa is the pressure of busy observation and the eight kilometers they say are busy observing, and the 8 kilometers are nothing to do, only the pressure of mpa.

Pressure, which represents several pressures.

That's 8 atmospheres, or 8 kilograms per square centimeter. Normally, the gauge indicates that the gauge pressure is Pascal) is the SI unit of pressure, because Pascal is a very small unit of balance, not easy to calculate, so we often use rubber MPA (megapascal) to represent pressure.

Summary. The general working pressure of the air compressor is:

An air compressor is a device used to compress gas. An air compressor is similar to a water pump. Most air compressors are reciprocating piston type, rotating vanes or rotating screws. Centrifugal compressors are very large applications.

The professional term air compressor (English: air compressor) is the main body in the air compression device, which is a device that converts the mechanical energy of the prime mover (usually an electric motor) into gas pressure energy, and is a pressure generating device for compressed air.

The maximum working pressure of the air compressor system is 8 barWhat is the rated working pressure.

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The general working pressure of the air compressor is: An air compressor is a device used to compress disturbing gases. An air compressor is similar to a water pump.

Most air compressors are reciprocating piston type, with rotating vanes or rotating screws. Centrifugal compressors are very large applications. The term air compressor (in English:

Air compressor) is the main body of the air source device, and the slow lift is a device that converts the mechanical energy of the prime mover (usually the motor) into gas pressure energy, and is a pressure generating device for compressed air.

Summary. The operating pressure requirement is equal to.

The operating pressure requirement is equal to how many MPa

The operating pressure requirement is equal to.

The conversion relationship between kgf cm and perturbed skin mpa is 1kgf cm = mpa. Therefore, kgf cm hramp = x = mpa.

Summary. Hello <>

The absolute pressure is the atmospheric pressure minus the absolute pressure. Normally, the atmospheric pressure on the ground is about standard atmospheric pressure), so the relative pressure is.

What is the absolute pressure, + relative pressure.

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The absolute pressure is the atmospheric pressure minus the absolute pressure. In the case of a code shout, the atmospheric pressure on the ground is about the standard atmospheric pressure), and the relative pressure is for the good model.

Pressure refers to the force experienced per unit area. The concept of absolute pressure and relative pressure in stockings is based on a reference point – absolute vacuum or pressure in a certain excitation environment. In the engineering collar and domain, the commonly used pressure units are Pascal (Pa), kilopascal (kpa), bar (bar) and so on.

In practice, we often need to measure pressure through devices such as sensors for control and monitoring. In addition to the absolute and relative pressures mentioned above, a common concept of pressure is gauge pressure (i.e., the pressure displayed relative to a standard barometer), which needs to be distinguished in use.

Are you sure it's not?

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Dear, the teacher made a mistake, yes, dear.

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Correct Answer: Namely.

Yes, dear.

Be accurate. The standard state of the solute in the solution is the state of the specified temperature t and standard pressure p, and the molar concentration of 1 mol kg. Since the pressure has little effect on the volume of liquids and solids, the standard concentration of solutes can be replaced by c=1 mol l.

A pure gas state exhibiting ideal gas properties at any temperature t, standard pressure p = 100 kPa. Note: Before 1993, China stipulated the standard pressure p = , and then adopted the current p = 100kpa according to GB.

Several common pressure unit conversion relationships in engineering are as follows:

1mpa=106pa≈145psi≈

1kgf/cm²=

1psi（1bf/in²）=

1mmh2o=