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At constant volume at 27^(@) C, 2C_(6)H_(6)(g)+150_(2)(g) to 12CO_(2)(g)+6H_(2)O(l), Delta u=-1600 kcal 2C_(2)H_(2)(g)+5O_(2)(g) to 4CO_(2)(g)+2H_(2)O (l), Deltau=-620 kcal Calculate the heat of polymerisation of acetylene to benzene at constant pressure. |
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