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The Role Catalysts In Chemical Reactions, Their Importance In Industry, Problems And New Developments
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The Role Catalysts In Chemical Reactions, Their Importance In Industry, Problems
OXFORD AND CAMBRIDGE SCHOOLS EXAMINATION BOARD. General Certificate Examination
- Advanced Level Chemistry (Salters') - Paper 3 mock.
ROBERT TAYLOR U6JW.
A Catalyst is a substance that alters the rate of a reaction. T ....
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....il the mid - 1960's silica-alumina gels were used to catalyse the cracking
of hydrocarbons. This form of cracking is where the large molecules in oil are
converted into small, highly volatile molecules. However because the size of the
pores of silica-alumina gels was so variable, (ranging from 0.1nm to 50nm), and
the fact that their shape was so variable, they were hardly ideal catalysts. Due
to the large size of their cavities, large carbonaceous products were able to
form in the cavities thus .... |
| Number of words: 1031 |
Approximate pages: 4 |
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