Methylene chloride. (submitted by the website administration) Chlorinated solvent Methylene chloride. Chemical formula: CH 2 Cl 2. Property. Value in metric unit. Value in US unit. Density at 68°F (20°C) 1.32*10³.

Figure: Heat of condensation released during condensation of steam (water vapor) leads to severe burns Steam burns are more dangerous compared to water burns because additional latent heat is transferred in the form of heat of condensation!

Give reason for the higher boiling point of ethanol in comparison to methoxymethane.

The boiling point is the temperature at which the vapor pressure of a liquid equals the external pressure surrounding the liquid. Therefore, the boiling point of a liquid depends on atmospheric pressure. The boiling point becomes lower as the external pressure is reduced. As an example, at sea level the boiling point of water is 100 C (212 F.

Water’s heat of vaporization is around 540 cal/g at 100 °C, water's boiling point. Note that some molecules of water – ones that happen to have high kinetic energy – will escape from the surface of the water even at lower temperatures.