Qualification > Sciences
CHEM AND BIO HELP AND TIPS HERE
Baladya:
Thanks man :D ;D
WARRIOR:
Whats the difference between electrolysis and cells?
And. When you burn for example. ETHANOL ..AND BUTANOL till the temperature of a beaker filled with water reaches 50 * C. You burn less mass of butanol to obtain same temperature rise!. Why is that?
Fastal:
more bonds are there , and more energy is given out
Vin:
electrolysis is a process involving decomposition of an iconic compound using electrical energy .. if u use 'inert' electrodes like carbon .. if u change the electrodes to say copper, it tends to take part in the 'reaction' (electrolysis) .. you can purify copper with using copper electrodes .. u tht process too ??
making cells or batteries is slightly different .. in alkaline batteries (zinc carbon batteries) the positive electrode is manganese oxide and the negative electrode is zinc .. note tht these metals act as electrodes and an electrolyte used may be an alkali (sodium hydroxide)
Butanol has a larger chain compared to ethanol .. due to this fact more energy is released in the process of 'burning' of butanol ..
WARRIOR:
--- Quote from: ~VIN1094~ on May 14, 2010, 07:08:29 pm ---electrolysis is a process involving decomposition of an iconic compound using electrical energy .. if u use 'inert' electrodes like carbon .. if u change the electrodes to say copper, it tends to take part in the 'reaction' (electrolysis) .. you can purify copper with using copper electrodes .. u tht process too ??
making cells or batteries is slightly different .. in alkaline batteries (zinc carbon batteries) the positive electrode is manganese oxide and the negative electrode is zinc .. note tht these metals act as electrodes and an electrolyte used may be an alkali (sodium hydroxide)
Butanol has a larger chain compared to ethanol .. due to this fact more energy is released in the process of 'burning' of butanol ..
--- End quote ---
I get the alcohol question..but hmm
to make things clearer about electrolysis..pretend you get assked in an exam..What is the difference bettween electrolysis and cell?
i know 1 . Electrolysis converts electrical to chemical and cells form chemical to electrical ?? <--? right??
what else?
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