Vava_ Posted March 16 Share Posted March 16 Bonjour, Je faisais le QCM 25 Session 2 2020-2021 je ne comprends pas pourquoi la question E est juste. -> E. Le temps au bout duquel il ne restera plus que 10% de la concentration initiale en A, est : t = ln (10) / k . Je comprend pourquoii mettre ln10? mercii Quote Link to comment Share on other sites More sharing options...
Tuteur Solution suzy22 Posted March 16 Tuteur Solution Share Posted March 16 Salut, voici le détail du calcul: https://ibb.co/xMzc9fS j’espère que c’est plus clair. Antoibaïne and Thomastocyte 2 Quote Link to comment Share on other sites More sharing options...
Vava_ Posted March 16 Author Share Posted March 16 il y a 20 minutes, suzy22 a dit : Salut, voici le détail du calcul: https://ibb.co/xMzc9fS j’espère que c’est plus clair. merciiii suzy22 1 Quote Link to comment Share on other sites More sharing options...
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