non-reversible changes
[nɑn-rɪˈvɜrsəbəl ˈtʃeɪndʒɪz]
noun phrasepl: non-reversible changes
mudanças irreversíveis
1. Changes or transformations that cannot be undone or returned to their original state
The burning of paper represents non-reversible changes in matter.
A queimação do papel representa mudanças irreversíveis da matéria.
2. In chemistry and physics, transformations where reactants cannot be recovered from products under normal conditions
The rusting of iron is a non-reversible change that occurs over time.
A ferrugem do ferro é uma mudança irreversível que ocorre ao longo do tempo.
3. In general context, any modification or alteration that cannot be restored to its previous condition
Climate change represents non-reversible changes to our planet's ecosystem.
A mudança climática representa mudanças irreversíveis no ecossistema do nosso planeta.
This term is primarily used in scientific, educational, and environmental contexts in both Brazil and the United States. In Brazilian schools, it is commonly taught as part of chemistry and physics curricula to distinguish between reversible and non-reversible chemical reactions. The concept is increasingly referenced in discussions about climate change and environmental sustainability in Portuguese-speaking countries.
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