Question
Two forms of carbon are graphite, the soft, black slippery material used in lead pencials and as a lubricant for locks, and diamond, the brilliant,
Two forms of carbon are graphite, the soft, black slippery material used in “lead” pencials and as a lubricant for locks, and diamond, the brilliant, hard gemstone. Using the enthalpies of combustion for graphite (-394 kJ / mol;) and graphite (-396 kJ/mol), calcualte ?H for the conversion of graphite to diamond:
Cgraphits (s) ® Cdiamond(s)
Is the process exothermic or endothermic?
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H H product H reactant 3...
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Separation process principles
Authors: J. D. Seader
2nd Edition
471464805, 978-0471464808
