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Avogadro's Law & Gay Lussac's Law

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What will be the molar volume of nitrogen and argon at 273.15 K and 1 atm?

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Solution

When temperature and pressure of a gas is 273.15 K $(o r 0^{\circ} C)$ and 1 atm (or 1 bar or $10^{5}$ pascal), such conditions are called standard temperature and pressure conditions (STP). Under these conditions, the volume occupied by 1 mole of each and every gas is 22.4L. Hence, the moler volume of $N_{2}$ and Ar at 273.15 K ans 1 atm is 22.4 L.

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