What is the vapor pressure of a liquid (in mmHg) at 298.15 K if its H v a p = 28.9 k J / m o l and its normal boiling point is 341.88 K? A weather balloon contains 25.0L of helium at 790 mmHg and 25.0 degrees Celsius. As it travels through the atmospher...
Vapour PressureIf a container of water is left unsealed the water will eventually evaporate even though the temperature is far below the melting point. This is because there is a fraction of water molecules at the surface that possess enough energy to be removed from the bulk liquid and ...
Take a clean and dry 500L reactor , the pressure gauge and thermometer are within the validity period, the bottom valve has been closed, and the reactor is replaced with argon three times; 180kg of tetrahydrofuran and 100kg of hexamethyldisilazane are added to the reactor through the upper ...
Isopropanol is also known as isopropyl alcohol. It is the simplest secondary alcohol and is one of the isomers of n-propanol. It is a kind of flammable liquid which is colorless with strong smell being similar to the smell of the mixture of ethanol and acetone. It is soluble in water, ...
A scientist must be mindful of the solvent properties to avoid undesirable defects. Chief among important solvent properties are boiling point, conductivity, and vapor pressure. Using a solvent that has a low boiling point could result in complete evaporation. However, if it evaporates too fast, ...
What is Condensation? - Condensation is the change of the physical state of matter from the gas phase into the liquid phase, and is the reverse of vaporization. Condensation is the process of a substance in a gaseous state transforming into a liquid stat
The common thread shared by all biodiesel produced is that they all contain fat in some form. Oils are just fats that are liquid at room temperature. Thesefats, or triacylglycerols (sometimes called triglycerides) are made up of carbon, hydrogen, and oxygen atoms bound together and arranged int...
What is Tank Blanketing? Tank Blanketing, sometimes referred to as “tank padding” or “nitrogen blanketing”, is the process of filling the empty space of a liquid storage tank with an inert gas, most likely nitrogen, to reduce oxidation and product contamination. Nitrogen is often the tank...
Ambient air vaporizer description Ambient air heated vaporizer utilizes air natural convection to heat the cryogenic liquid(LOX,LIN,LAr,LCO2,LNG,LC2H4,LPG,etc.)in the heat exchange tubes,making them totally evaporate into gases ,it is a kind of high efficient energy-saving heat...
What is the enthalpy change if 25.0 g of methane is burned? 890 kJ of heat is released for every mole of methane that reacts. CH4 + 2O2 = CO2 + 2H2O Calculate the enthalpy change for the combustion of one mole o acetylene, C_2 H_2, to form carbon dioxi...