The density of neon at 0°C (273.15 K) and 1 atmosphere (atm) of pressure is 0.89990 g/litre.
Neon (Ne) is a noble gas, and its density is typically measured under standard conditions. Here’s a breakdown of what influences neon's density and why that specific value is significant:
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Standard Conditions: Density is highly dependent on temperature and pressure. The stated value (0.89990 g/litre) is specified for standard temperature and pressure (STP), which helps in comparing densities across different gases.
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Atomic Properties: Neon has an atomic number of 10 and an atomic weight of approximately 20.183 atomic mass units (amu). These properties, combined with the ideal gas law, influence its density as a gas.
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Measurement Units: Density is often expressed in grams per liter (g/L) for gases, making it easy to compare to the density of air and other common gases.
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Temperature and Pressure Effects:
- Temperature: Increasing the temperature generally decreases the density of a gas because the gas expands.
- Pressure: Increasing the pressure generally increases the density because the gas is compressed into a smaller volume.
In summary, the density of neon is a well-defined physical property under standard conditions, playing a role in various applications such as lighting and cryogenic cooling.
