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What is the molar volume of an ideal gas at standard temperature and pressure?

Question

What is the molar volume of an ideal gas at standard temperature and pressure?

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Solution

The molar volume of an ideal gas at standard temperature and pressure (STP) is 22.4 liters. This is derived from Avogadro's law which states that one mole of any gas at STP occupies a volume of 22.4 liters.

Here are the steps to understand this:

  1. Avogadro's law states that equal volumes of all gases, at the same temperature and pressure, have the same number of molecules. This means that the volume of a gas is directly proportional to the number of moles (n) of the gas.

  2. The standard temperature and pressure (STP) are defined as 0°C (273.15 K) and 1 atmosphere pressure.

  3. According to Avogadro's law, one mole of any gas at STP occupies a volume of 22.4 liters. This is known as the molar volume of a gas at STP.

So, the molar volume of an ideal gas at STP is 22.4 liters.

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