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Si se suministran \( 6401.5 \mathrm{~J}(1530 \mathrm{Cal}) \) a 45 ml de agua a \( 14^{\circ} \mathrm{C} \) Cuál será la temperatura final?

Ask by Wilson Knight. in Mexico
Feb 21,2025

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La temperatura final del agua será de \( 48^{\circ} \mathrm{C} \).

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The Deep Dive

Para calcular la temperatura final, podemos usar la fórmula de calor \( Q = mc\Delta T \), donde \( Q \) es la cantidad de calor suministrada, \( m \) es la masa del agua, \( c \) es la capacidad calorífica del agua (aproximadamente \( 4.18 \mathrm{~J/g}^{\circ} \mathrm{C} \)), y \( \Delta T \) es el cambio de temperatura. La masa del agua puede ser calculada usando la densidad del agua, \( 1 \mathrm{~g/ml} \), así que \( 45 \mathrm{~ml} \) son \( 45 \mathrm{~g} \). Entonces: \[ 6401.5 = 45 \times 4.18 \times (T_f - 14) \] Resolviendo para \( T_f \): \[ T_f = \frac{6401.5}{45 \times 4.18} + 14 \] Calculando el valor: \[ T_f \approx 14 + \frac{6401.5}{188.1} \approx 14 + 34.0 \approx 48.0^{\circ} C \] Así que la temperatura final del agua será aproximadamente \( 48.0^{\circ} C \).

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