The density of neon at 0°C (273.15 K) and 1 atmosphere (atm) of pressure is 0.89990 grams per liter (g/L).
Neon, a noble gas, is characterized by its low density under standard conditions due to its monatomic nature and weak interatomic forces. Density is defined as mass per unit volume. Here's a more detailed look:
Neon Density Explained
- Definition: Density is a measure of how much mass is contained in a given volume.
- Value: The density of neon at standard temperature and pressure (STP) is approximately 0.89990 g/L.
- Conditions: This value is specified at 0°C (273.15 K) and 1 atm pressure. Temperature and pressure significantly affect the density of gases.
Factors Affecting Neon Density
The density of neon, like any gas, is influenced by temperature and pressure according to the ideal gas law:
PV = nRT
Where:
- P = Pressure
- V = Volume
- n = Number of moles
- R = Ideal gas constant
- T = Temperature
From this, we can derive the following relationship for density (ρ):
ρ = (PM) / (RT)
Where:
- M = Molar mass
Therefore:
- Temperature: As temperature increases, density decreases (at constant pressure).
- Pressure: As pressure increases, density increases (at constant temperature).
Neon Properties
| Property | Value |
|---|---|
| Atomic Number | 10 |
| Atomic Weight | 20.183 amu |
| Melting Point | -248.67 °C (-415.5 °F) |
| Boiling Point | -246.048 °C (-411 °F) |
| Density (at STP) | 0.89990 g/L |
In summary, neon density is 0.89990 g/L at standard temperature and pressure (0°C and 1 atm), and this value is affected by changes in temperature and pressure as dictated by the ideal gas law.
