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Question 20 (4 points) On plonge un bloc de glace de 2 kg a -20 C et une bille d'acier de 1 kg a une

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Question 20 (4 points) On plonge un bloc de glace de 2 kg a -20 C et une bille d'acier de 1 kg a une temperature de 150 C dans 4 kg d'eau liquide a 20 C (on neglige le recipient). Quelle est la temperature finale [en "C] du systeme a l'equilibre? La chaleur specifique de l'eau est : 4190 [J/(kg.K)] La chaleur specifique de la glace est : 2100 [J/(kg.K)] La chaleur specifique de l'acier est : 450 J/(kg.K) La chaleur latente de fusion de l'eau (passage de la glace a l'eau) est : 334 000 J/kg La chaleur latente de vaporisation de l'eau est 2 260 000 J/kg. Your

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