November 2019 1 185 Report
Ainda considerando a combustão do metano (CH4) representada abaixo:

CH4(g) + 2O2(g) → CO2(g) + 2H2O(l)

∆H = – 200 kcal

O calor liberado na queima de 1 g de metano corresponde a

Dados: C = 12 g/mol; O = 16 g/mol; H = 1 g/mol

a) 200 kcal.
b) 100 kcal.
c) 25 kcal.
d) 12,5 kcal.
e) 6,25 kcal.
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