the heat of combustion of carbon to carbon dioxide is -3 93.5 kilo joule per mole the heat released upon formation of 35.2 gram of carbon dioxide from carbon and Oxygen gas is
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1
Explanation:
we have the ratio of the element in the compound so we have the empirical formula which is
C5H5O
each empirical formula unit has a mass of (5x12+5+16)= 81g
the molecular mass is 162 g so there are 2 empirical units in the molecular formula
the molecular formula is
C10H10O2
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Given, c(s)+o2(g)=co2(g)
deltafH= -393.5kjmol*-1
Therefore, heat released on formation of 44g or 1 mole co2 = -395kj mole
Therefore , heat released on formation of 35.29of co2
= -393.5kjmole* -1/44g ×35.2g
= -315kj
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