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Which statement would be the most useful for deriving the ideal gas law? Volume is directly proportional to the number of moles. Volume is inversely proportional to the temperature. Pressure is directly proportional to the volume. Pressure is inversely proportional to the number of moles.

Brandon Scott

in Chemistry

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Melissa Norris on July 1, 2018

The answer is: the Volume is directly proportional to the number of moles.Given the ideal gas equation: PV = nRTWe you can see that the pressure (P) and volume (V) are on the left side of the equation, while the number of moles (n), the gas constant (R) and the temperature (T) are on the right side.If you increase/decrease the volume, this translates into a direct increase/decrease of the number of moles, which proves the statement of the truth. The volume is directly proportional to the temperature. The pressure is inversely proportional to volume and directly proportional to the number of moles.


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