Table of Contents
What is the viscosity of ethylene?
Absolute (dynamic) viscosities of some common gases.
| Gas | Absolute Viscosity (10-5 Pa s) | |
|---|---|---|
| Temperature (°C) | ||
| Ethylene | 0.97 | 1.79 |
| Helium | 1.87 | 3.12 |
| Hydrogen | 0.84 | 1.37 |
What temperature is liquid ethylene?
We define ethylene as either C₂H₄ or H₂C=CH₂ to represent its physical structure. It is a liquid between the C₂H₄ melting point (-169.2°C) and the C₂H₄ boiling point (-103.7°C) at standard pressures (1 bar, approximately atmospheric pressure).
What is the temperature of ethylene?
Ethylene is produced in petrochemical processes, as steam cracking where hydrocarbons and steam are heated to 750–950 °C.
Is ethylene glycol more viscous than water?
It’s also the increased number of hydrogen bonds in ethylene glycol that makes it more viscous (less runny) than ethanol (or water). Water also contains O-H groups, of course, which ‘hydrogen bond’ to each other, causing water to have a very high boiling point for a molecule of its size.
Which is more viscous ethylene glycol or glycerol?
Viscosity depends on the amount of hydrogen bonding between molecules and presence of more −OH group, glycerol involved in intramolecular hydrogen bonding within the molecule, thus glycerol is more viscous than ethylene glycol.
What is the enthalpy of ethylene?
Selected ATcT enthalpy of formation based on version 1.118 of the Thermochemical Network
| Species Name | Formula | ΔfH°(298.15 K) |
|---|---|---|
| Ethylene | C2H4 (g) | 52.53 |
What is liquid ethylene?
Eastman™ liquid ethylene is a highly flammable colorless, nontoxic gas with a characteristic sweet odor and taste.
What is the critical temperature of ethylene?
282.35 K
ETHYLENE
| Molecular weight: 28.054 | Critical temperature: 282.35 K |
|---|---|
| Melting point: 104 K | Critical pressure: 5.0408 MPa |
| Normal boiling point: 169.35 K | Critical density: 214.2 kg/m3 |
| Normal vapor density: 1.26 kg/m3 | (@ 273.15K; 1.0135MPa) |
At which temperature would ethene be a liquid?
Ethane
| Names | |
|---|---|
| Odor | Odorless |
| Density | 1.3562 kg/m3 (gas at 0 °C) 544.0 kg/m3 (liquid at -88,5 °C) 206 kg/m3 (at critical point 305.322 K) |
| Melting point | −182.8 °C; −296.9 °F; 90.4 K |
| Boiling point | −88.5 °C; −127.4 °F; 184.6 K |
Why is ethylene glycol more viscous than water?
At what temperature is ethylene a liquid?
| Property | Value | Unit |
|---|---|---|
| Heat (enthalpy) of formation (gas) | 52.4 | kJ/mol |
| Heat (enthalpy) of evaporation at -104°C/-155°F | 13.6 | kJ/mol |
| Heat capacity, Cp (gas) | 42.9 | J/mol K |
| Heat capacity, Cp (liquid) at -104°C/-155°F | 67.4 | J/mol K |
Why is glycerol heavier than ethylene glycol?
Glycerol (1,2,3-trihydroxypropane) has three -OH groups per molecule while ethylene glycol (1,2-dihydroxyethane) has two -OH groups. The viscosity depends on the amount of hydrogen bonding between molecules, and the more -OH bonds there are, the more hydrogen bonding can occur.
What is constant kB of ethylene glycol?
Ethylene glycol (C 2 H 6 O 2 ) is a molecular compound that is used in many commercial anti-freezes. A water solution of ethylene glycol is used in vehicle radiators to lower its freezing point and thus prevent the water in the radiator from freezing. Calculate the freezing point of a solution of 400. g of ethylene glycol in 500. g of water.
Critical point: 282.5 K (9.4 °C), 50.6 bar log 10 of ethylene vapor pressure. Except where noted otherwise, data relate to standard ambient temperature and pressure. Disclaimer applies. This page was last edited on 31 December 2021, at 13:13 (UTC). Text is
What is the molar mass of ethylene glycol?
Ethylene glycol is composed of 6 hydrogens, two carbon, and two oxygen atoms. So, M (molar mass of Ethylene glycol) = 12 (carbon atomic mass) x 2 + 1 (hydrogen atomic mass) x 6 + 16 (oxygen atomic mass) x 2 = 62.07 (g/mol).