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Industrial process by which sulfur trioxide and sulfuric acid are produced from sulfur dioxide.

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Endothermic

Describes processes that absorb heat energy.

Chemical Hygiene Officer (CHO)

A person or employee who is qualified by training or experience to provide technical guidance in the development and implementations of the provisions of a Chemical Hygiene Plan (CHP)

Emulsion

Colloidal suspension of a liquid in a liquid.

Heat of Vaporization

The amount of heat required to vaporize one gram of a liquid at its boiling point with no change in temperature. Usually expressed in J/g. The molar heat of vaporization is the amount of heat required to vaporize one mole of liquid at its boiling point with no change in temperature and usually expressed ion kJ/mol.

Specific Rate Constant

An experimentally determined (proportionality) constant, which is different for different reactions and which changes only with temperature, k in the rate-law expression: Rate = k [A] x [B]v.

Evaporization

Vaporization of a liquid below its boiling point.

Intermolecular Forces

Forces between individual particles (atoms, molecules, ions) of a substance.

Molality

Concentration expressed as number of moles of solute per kilogram of solvent.

Percent by Mass

100% times the actual yield divided by theoretical yield.

Sulfuric Acid

H2SO4: colorless, oily liquid, boiling point 330C. A 96 percent solution is used in the laboratory.

Fire Hazard: This is a very powerful, acidic oxidizer which can Ignite or even explode on contact with many materials, i.e. acetic acid ,acetone+ HNOs, alcohols, + H202, NH4OH, HCL, NaOH, and others.

Sulfuric acid has a wide range of uses and plays a part in the production of nearly all manufactured goods.