Coursework.Info - Inspiration in an Instant

On the left is an image preview of every page of this document, and below are the first 150 words with formatting removed:

Catalysis Catalysis is alteration of the speed of a chemical reaction, through the presence of an additional substance, known as a catalyst that remains chemically unchanged by the reaction. A catalyst in a solution with or in the same phase as the reactants is called a homogeneous catalyst. The catalyst combines with one of the reactants to form a compound that reacts more readily with the other reactants. The catalyst, however, does not influence the equilibrium of the reaction, because the decomposition of the products into the reactants is speeded up to a similar degree. An example of homogeneous catalysis is the formation of sulphur trioxide by the reaction of sulphur dioxide with oxygen, in which nitrogen dioxide serves as a catalyst. 2SO2(g) + O2(g) › 2SO3(g) NO2(g) A catalyst that is in a separate phase from the reactants is said to be a heterogeneous, or contact, catalyst. Contact catalysts...

Get instant access

• Instant, unlimited access to our documents in full
• Swap your work for free access, or pay £4.99
• To see the full version of this document and 147,231 others

OR

Receive email updates for this category

• Simply tell us your email address and receive a weekly Study Help Email for FREE
• Receive 3 FREE essay views with each email
• Get all the latest essays from Coursework.Info & discussion from TheStudentRoom.co.uk