In the ideal gas law PV = nRT, what does n represent?

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Multiple Choice

In the ideal gas law PV = nRT, what does n represent?

Explanation:
n represents the amount of substance of the gas, measured in moles. A mole is a counting unit that tells you how many particles are present, since 1 mole corresponds to 6.022×10^23 particles. In the ideal gas law, PV = nRT, the amount of gas (n) connects the microscopic number of particles to the macroscopic properties P, V, and T. If you keep pressure and temperature fixed and increase n, the volume must increase in proportion to accommodate more particles. Likewise, at a fixed volume and temperature, increasing n raises the pressure. The temperature is kept in Kelvin to ensure the relationship remains linear and physically meaningful. In short, n quantifies how much gas there is, in moles.

n represents the amount of substance of the gas, measured in moles. A mole is a counting unit that tells you how many particles are present, since 1 mole corresponds to 6.022×10^23 particles. In the ideal gas law, PV = nRT, the amount of gas (n) connects the microscopic number of particles to the macroscopic properties P, V, and T. If you keep pressure and temperature fixed and increase n, the volume must increase in proportion to accommodate more particles. Likewise, at a fixed volume and temperature, increasing n raises the pressure. The temperature is kept in Kelvin to ensure the relationship remains linear and physically meaningful. In short, n quantifies how much gas there is, in moles.

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