Why must only SI units be used when making calculation using the ideal gas equation?
- alan PLv 75 months ago
You can use any set of consistent units
- Anonymous5 months ago
the short answer is you don't.
- ZirpLv 76 months ago
So people from around the world can read and understand what you calculated and noted
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- L. E. GantLv 76 months ago
Primarily because that's the way it is taught. The equation still holds, but the units are very different. and the arithmetic is a bit trickier, even though the same equation still holds.
Imperial (or English) units can be used as in:
- electron1Lv 76 months ago
The constant R is 22.4 liters divided 273˚K
R = 22.4 ÷ 273
This is approximately 0.08205. 22.4 is the number of liters of one mole of a gas at standard temperature and pressure.
P * V = n * R * T
P is in atmospheres. V is in liters. n is the number of moles. T is the temperature in ˚K. If we used different units, the value of the ideal gas constant would have to be different.
- D gLv 76 months ago
probably the reason is the formulas are writen that way ..
Kelvin temps re used because they are all positive
land the pressures hve to apply to the pressure of the equation so the result is accurate to the data given and the result wanted ..