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travisalier4171
02.12.2020 •
Chemistry
A bottle of hydrogen peroxide (H2O2) is labeled 3.0% (v/v). How many mL H2O2 are in a 400.0-ml bottle?
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Ответ:
La temperatura final del sistema es 1029,346 °C.
Explanation:
Asumamos que el sistema conformado por el cobre y el estaño no tiene interacciones con sus alrededores. Por la Primera Ley de la Termodinámica, el cobre cede calor al estaño con tal de alcanzar el equilibrio térmico. El cobre se encuentra inicialmente en su punto de fusión, mientras que el estaño está por encima de ese punto, de modo que la transferencia de calor es esencialmente sensible:
Donde:
Si sabemos que
,
,
,
,
y
, entonces la temperatura final del sistema es:
La temperatura final del sistema es 1029,346 °C.