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Select one correct statement. In the gas equation, PV = nRT:

1. n is the number of molecules of a gas
2. V denotes volume of one mole of the gas
3. n moles of the gas have a volume V
4. P is the pressure of the gas when only one mole of gas is present

Correct answer: n moles of the gas have a volume V

Solution

This is the correct interpretation of the gas equation PV = nRT.

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