Chemistry, 13.12.2019 22:31 Queenhagar

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classifying everyday processes
classify each process according to direction of heat flow.
evaporation of alcohol from skin: liquid c3h80 +5.2 kj → vaporized c3h2o
burning of propane in a gas grill: c3hg +502 → 3c02 + 4h20 + 1652 kj
oxidation of iron to form rust: 4fe + 302 → 2fe2o3 + 2221 kj
heat flows in
heat flows out

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classifying everyday processes
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