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In thermodynamics the standard pressure is 100.0 kpa . What is this value in units of atmospheres?
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∙ 6y ago
1 atm
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Why is pressure a derived quantity?
In the SI system, because that's the way it is defined. Pressure is defined as force divided by area. SI units are newton / square meter, this derived unit is called the pascal. This is the way it is defined in the SI, and in some other systems of units. You could just as well create a system of units in which pressure is a base unit, and force is derived (as the product of pressure x area). The decision, which units are base units and which units are derived, is more or less arbitrary.
What is 1 ampere in standard units?
Ampere IS the international standard unit for electric current.
Is pressure equal to force over acceleration?
In general pressure is defined as force exerted on a unit area, being so measured in N/m2 that is called Pascal (Pa). There are several other possible measurement units for pressure, like psi (pound on square foot), atmospheres (that is the average pressure of the atmosphere on the earth surface) and so on. However I suggest to always use SI units (meters, seconds, Pa, N etc..) since this assures to make no errors in formulas due to incompatible measurement units. At last, very small or very large numbers are not more difficult to deal with than numbers in the order of one :-) When pressure in liquids or gasses is considered, these fluids transmit pressures at the same way in all directions, thus a simple scalar pressure can be defined in each point. The situation is different in anisotropic materials like crystals, where the pressure in a point depends on the direction due to the particular crustal structure.
How many psi is 45000lbs?
You can't convert between units of pressure and units of force (or mass).
What is S.I. System of units Explain its need.?
The S.I. is the international standard of units. Its main purpose is to use the same units all over the world.
What do you measure with atmospheres?
Pressure is measured in atmospheres (as well as Pascals, millimeters mercury and other units)
How many feet in 10 atmospheres?
Those are incompatible (non-convertable) units: Feet is a measure of length, atmospheres is a measure of pressure.
What is the standard measure for pressure?
The standard measure for pressure is the Pascal (Pa). It is defined as one Newton per square meter (N/m^2). Other commonly used units for pressure include atmospheres (atm), bar, and pounds per square inch (psi).
How is boost measured?
boost is pressure. units of pressure is pounds per square inch(psi), atmospheres (bar), and kilo pascals (kpa)
Two methods of measuring air pressure are BAR or?
some units of pressure include: ATM (atmospheres) psi (pounds force per square inch)
What are two different units to measure air pressure?
there are several, like Pascals, mm of mercury, atmospheres, bars, torr, etc.
What variables and units are used to describe a gas?
Pressure, volume and temperature, and moles of gas are the four principal variables to describe a gas (for example, see related questions on Ideal Gas Law and others). The standard units are: Pressure: atmospheres (atm) Volume: liters (L) Temperature: Kelvin (K) Number of moles are measure in, well, moles.
What is value of R In the ideal gas law?
0.0821 L·atm/mol·K -Apex
What units are used to measure atmosheric pressure?
The SI unit for pressure is a Pascal but in this case the standard unit is the standard atmosphere (= 101325 Pa).
What does the following mean suggested pressure of the rear tire is 7 to 8 atmospheres?
An atmosphere is a measurment of pressure with one atmosphere being equal to the air pressure at sea level, approximately 15 P.S.I. 7 to 8 atmospheres would be approximately 105 to 120 Pounds Per Square Inch of pressure. Im guessing that tyre is a typo and is supposed to be a "tire" of some vehicle. Anyway the suggested pressure is the ideal pressure inside your rear tires. 1 ATM (or atmopshere) is the standard atmospheric pressure at sea level. Just look up the conversion rates online between "ATM" and the units of measurement on your tire pressure gauge. Some of these units might be kPa (kilo pascals), torr, or mm/Hg (or millimeters mercury).
Pressure units ATA full form?
A unit of absolute pressure in the metric.ATA(s): Abbreviation for "Atmospheres Absolute", defines as the total pressure exerted on an object, by a gas or mixture of gases, at a specific depth or elevation, including normal atmospheric pressure.
What is The force pushing on a surface divided by the area of that suface?
Pressure. (Note that the force must be perpendicular to the surface.) Pressure can my measured in Pascals (N/m2), psi (pounds/in2), atmospheres, or a few other units.
