How do you calculate the ideal gas law constant?
Answers
Answer:
The ideal gas law uses the formula PV = nRT where P is the pressure in atmospheres (atm), V is the volume in liters (L), n is the number of moles (mol) and T is the temperature in kelvin (K).
Explanation:hope it help you plz mark as brainlist
Answer:
☛ You do an experiment in which you measure the values of P,V,n, and T, and then you insert these values into the Ideal Gas Law.
Explanation:
The Ideal Gas Law is
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯∣∣aaPV=nRTaa∣∣−−−−−−−−−−−−−−−
＞ where R is the Universal Gas Constant.
We can rearrange this to get
R=PVnT
The units of R depend on the units you use for P and V.
For example, repeated experiments show that at standard temperature and pressure (STP) — 273.15 K and 1 bar — 1 mol of gas occupies 22.711 L.
You can use this information to evaluate R.
➩ R=PVnT=1 bar ×22.711 L1 mol × 273.15 K=0.083 14 bar⋅L⋅K-1mol-1
If the pressure is measured in kilopascals (1 bar = 100 kPa), you calculate
➩ R=PVnT=100 kPa × 22.711 L1 mol × 273.15 K=8.314 kPa⋅L⋅K-1mol-1
If you use strictly SI units, then pressure is measured in pascals and volume is measured in cubic metres.
➩ R=PVnT=100×103lPa×22.711×10-3lm31 mol × 273.15 K=8.314 Pa⋅m3K-1mol-1
Always use the value of R that corresponds to the units that you are using for P and V