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6 days ago · the primary way that water extinguishes a fire is by absorbing heat which creates a cooling effect. when heated to its boiling point, water absorbs heat and converts into water vapor in a process called vaporization.
The number of molecules arriving at an area on one side of the gas layer, with speed at angle from the normal, in time interval is. These molecules made their last collision at a distance above and below the gas layer, and each will contribute a molecular kinetic energy of where is the specific heat capacity.
3 days ago · Most of the remaining 20% of commercially produced oxygen is used in medical applications, metal cutting and welding, as an oxidizer in rocket fuel, and in water treatment.[72] Oxygen is used in oxyacetylene welding, burning acetylenewith O. 2to produce a very hot flame.
2 days ago · Hydrogen peroxide is a chemical compound with the formula H 2 O 2. In its pure form, it is a very pale blue [ 5 ] liquid that is slightly more viscous than water. It is used as an oxidizer, bleaching agent, and antiseptic, usually as a dilute solution (3%–6% by weight) in water for consumer use and in higher concentrations for industrial use.
5 days ago · Explosive, any substance or device that can be made to produce a volume of rapidly expanding gas in an extremely brief period. There are three fundamental types: mechanical, nuclear, and chemical. A mechanical explosive is one that depends on a physical reaction, such as overloading a container.
3 days ago · Flame tests are performed by first dipping a nichrome wire in a solution of concentrated hydrochloric acid. Nichrome is an alloy of nickel and chromium that does not react with hydrochloric acid.
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5 days ago · Ideal gas, a gas that conforms, in physical behavior, to a particular idealized relation between pressure, volume, and temperature called the ideal gas law, which states that the product of the volume and pressure is proportional to the absolute temperature.
