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Diariamente podemos observar que reações químicas e fenômenos fisicos implicam em variações de energia. Analise cada um dos seguintes processos, sob pressão atmosférica.I. A combustão completa do metano (CH4) produzindo CO2 e H2O.II. O derretimento de um iceberg.III. O impacto de um tijolo no solo ao cair de uma altura h.Em relação aos processos analisados, pode-se afirmar que:a) I é exotérmico, II e III são endotérmicos.b) I e III são exotérmicos e II é endotérmico.c) I e II são exotérmicos e III é endotérmico.d) I, II e III são exotérmicos.e) I, II e III são endotérmicos.

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