What is the viscosity of air at STP?
What is the viscosity of air at STP?
The kinematic viscosity of air at 15 °C is 1.48 × 10-5 m2 /s or 14.8 cSt. At 25 °C, the viscosity is 18.6 μPa·s and the kinematic viscosity 15.7 cSt.
What is the dynamic viscosity of air at 20 C?
Kinematic viscosity of air at 20°C is given to be 1.6 × 10-5 m2/s.
What is density of air at STP?
1.2754 kg / m³
For example, the standard air density for STP is ρ₀ = 1.2754 kg / m³ , for NIST is ρ₀ = 1.2923 kg / m³ and for SATP is ρ₀ = 1.1684 kg / m³ .
Which has higher viscosity water or air?
Water, under normal temperatures, is about 50 times more viscous than air. Ice is 5 × 1016 times more viscous than air. One concludes that, in general, solids have extremely high viscosities whereas fluids have low viscosities.
How do you find the viscosity of air?
Viscosity of Air Calculator
- Formula. u = ( b * T^(3/2)) / (T+S)
- Temperature.
- b.
- S.
What is the viscosity of air at 30 degrees Celsius?
Answer. 1.205 × 10−3 g cm−3 and ν = 0.15 cm2 s−1.
What is the standard air?
Standard air is defined as dry air at 70 F and 14.696 psia, with a density of 0.075 lb/ft 3 (20 C and 101.325 kPa absolute, with a density of 1.204 kg/m).
Which has highest viscosity?
Glycol has maximum viscosity because it has two −OH groups and there is greater intermolecular H−bonding in comparison to water and methanol. Kerosene is a mixture of hydrocarbons.
What is the most viscous gas?
Viscosity has the SI units Pascal seconds (Pa s) which is called the Poiseuille. More commonly used is the dyne sec/cm2 which is called Poise. One Pa s is 10 Poise….Viscosity of Liquids and Gases.
| Gases | Viscosity (Poise) |
|---|---|
| Nitrogen | 0.00018 |
| Oxygen | 0.00020 |
| Water vapor (steam) | 0.00013 |
What is the density and viscosity of air?
Properties of Air at atmospheric pressure
| Temperature (T) | Density (ρ) | Dynamic Viscosity (μ) |
|---|---|---|
| -10 | 1.3426 | 1.6731 |
| -5 | 1.3175 | 1.6982 |
| 0 | 1.2933 | 1.7231 |
| 5 | 1.2699 | 1.7478 |
What are the properties of standard air?
The properties of air are:
- Air takes up space.
- Air has mass.
- Air is affected by heat.
- Air exerts pressure.
- Air can be compressed.
- Air is affected by altitude.
What is the volume at STP?
22.4 L
At STP, one mole of gas occupies 22.4 L of volume (molar volume).
Which of the following has lowest viscosity?
1 Answer. Water has the lowest viscosity.
Which is the least viscous?
The least viscous at any temperature must be superfluid liquid helium.