About pressure unit conversion? What are the units of PSID and psig and how to convert them into MPa?

About pressure unit conversion? What are the units of PSID and psig and how to convert them into MPa?


Have you heard of PSI? It's called (British system) steam pressure, the pressure of [steam] in the boiler. When steam is returned to steam and air is returned to air, the weight of water can be separated and calculated as (PSI), but I think when [PSI] is expressed separately, it should refer to [pressure of saturated steam in the boiler]. Psi is pounds



Conversion of several pressure units
How much MPa * m3 / S is 320 * 10-6mbar * L / s equal to


+3.2*10-11MPA*M3/S



Conversion of pressure (MP) to kilogram


The main unit of pressure is Newton (n)
The main unit of pressure is Pascal (PA)
It's megapascals
The kilogram is the main unit of mass
The kilogram force is a unit of force
1Pa=1N/m^2=1kgf/(9.8m^2)
1kgf=9.8N
1MPa=10^6Pa



The content of Archimedes principle
Be specific


The content of Archimedes principle: the object immersed in liquid is subject to upward buoyancy, and the magnitude of buoyancy is equal to the gravity of the liquid it displaces. Mathematical expression: F floating = g row = ρ Tu · g · V row. Unit: F floating - Newton, ρ Tu - kg / m3, G%% - Newton / kg, V row - m3



What is the content of Archimedes principle?
No,


The content of Archimedes principle: the object immersed in liquid is subject to upward buoyancy, and the magnitude of buoyancy is equal to the gravity of the liquid it displaces. Mathematical expression: F floating = g row = ρ Tu · g · V row. Unit: F floating - Newton, ρ Tu - kg / m3, G%% - Newton / kg, V row - m3



What is the concrete content of Archimedes principle?
It's about buoyancy. Be specific!


The object immersed in liquid is subject to upward buoyancy, and the magnitude of buoyancy is equal to the gravity of the liquid it displaces. This is the famous Archimedes principle. The formula of Archimedes principle is as follows: F floating = g row = ρ liquid GV row. The magnitude of buoyancy is only related to ρ liquid and V row. The magnitude of buoyancy is only related to the density of liquid and the displacement of liquid



How many milligrams per liter is one micromol per liter?


It is necessary to know the molar mass of the substance, that is, the molecular weight, before it can be transformed. Suppose the mass of the substance is m g / mol, 1 umol = 0.00000 1 mol, then the mass of 1 micromol of the substance is: 0.00000 1 * m g = 0.001 * m Mg, so 1 umol / L = 0.001 * m mg / L. take H2SO4 as an example



How to convert percentage into milligram per liter?


The percentage is the mass coefficient, that is, the mass of the solute divided by the mass of the solution; to convert mg / L, you need to calculate the mass of the solute and the volume of the solution (so you need a known mass and the density of the solution), and then divide them



How to convert mg / L to%?
How to convert mg into% content? Please explain in detail
For example: 0.01 mg / L =% 0.002 mg / L =%


Liter is volume, milligram is weight. In principle, there is no fixed formula, only according to the material density you need to calculate
For example, according to the standard of water density 1, 1 liter of water is 1 kg, 1 million mg, 1 liter of gasoline is 0.78 kg (assuming), that is 780000 mg, and then the accounting is relatively simple, such as 100 mg / 780000 * 100 = 0.00000 128205%



How to convert mg / L to mg / kg
How many grams of copper sulfate pentahydrate is needed to prepare a solution of copper ion concentration of 1G / L with copper sulfate pentahydrate? After calculation, 1g / L is converted into gram per kilogram. Many people say that this unit is approximately equal. The density is roughly the density of the aqueous solution. The amount of solute is relatively small. Do you think so?
The task given by the teacher is worrying!


Classmate, liter is the unit of volume, and kilogram is the unit of mass. How can I convert between liter and kilogram? It's just like how to convert Jin and cubic meter
There is one less condition in your question, that is, what is the density of the material you want to convert. Only with density can you convert between volume and mass
Understand?