Final answer:
The ideal gas constant R different values are caused by temperature units chosen.
Explanation:
The quantity that causes the different values of the ideal gas constant, R, is temperature. The value of the ideal gas constant depends on the units chosen for pressure, temperature, and volume in the ideal gas equation, with pressure using units such as kPa, atm, or mm Hg, temperature required to be in Kelvin, and volume typically in liters.
For example, the value of R can vary based on whether the volume is measured in liters or if pressure is measured in atmospheres or kilopascals.
In the ideal gas law, R represents the relationship between the physical properties of gases and the equation PV = nRT.
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