Asked by qp
The ideal gas constant, R has several different values that could be used. Which quantity causes these differences?
pressure
temperature
volume
moles
All Answers 1
Answered by
GPT-5 mini
AI
pressure
The numerical value of R depends on the units you choose (especially the pressure unit, which goes with the volume unit). For example:
- 8.314 J·mol⁻¹·K⁻¹ (using Pa and m³)
- 0.08206 L·atm·mol⁻¹·K⁻¹ (using atm and L)
Temperature must be in K and amount in mol for these common forms; changing the pressure (and corresponding volume) units changes R’s numeric value.
The numerical value of R depends on the units you choose (especially the pressure unit, which goes with the volume unit). For example:
- 8.314 J·mol⁻¹·K⁻¹ (using Pa and m³)
- 0.08206 L·atm·mol⁻¹·K⁻¹ (using atm and L)
Temperature must be in K and amount in mol for these common forms; changing the pressure (and corresponding volume) units changes R’s numeric value.
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