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11.10.2020 •
Chemistry
Si te comes un banano de 125 g, asumiendo que este es 100% potasio, calcula lo siguiente: Determina la cantidad de Kilocalorías que una persona consume, si se come una fruta, en específico un banano, provocando que la temperatura corporal suba de 36,5°C a 37,3°C
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Ответ:
0.0179254 kilocalorías(0,0179254 kilocalorías.)
Explanation:
Paso 1
Encontramos la Energía Calórica del Plátano
Se nos dice que el plátano es 100% potasio, por lo tanto
Fórmula de energía térmica = MCΔT
Dónde
M = Masa de sustancia (gramos)
C = Calor específico (j / g ° c)
ΔT = Cambio de temperatura (Temperatura final - Temperatura inicial) (° C)
Masa de (plátano) potasio = 125g
Calor específico de potasio = 0,75j / g ° C
ΔT = Cambio de temperatura
= 37,3 ° C - 36,5 ° C
= 0,8 ° C
Calor específico del banano
Q = 125 g × 0,75j / g ° C × 0,8 ° C
Q = 75 julios
Por lo tanto, 125 gramos de potasio (plátano) contienen 75 julios de energía.
Paso 2
Convertimos Julios de energía en kilocalorías
1 julio = 0.000239006 kilocalorías
75 julios =
Cruz multiplicar
75 julios × 0.000239006 kilocalorías / 1 julio
= 0.0179254 kilocalorías.
Por tanto, 125 g de plátano contienen 0,0179254 kilocalorías.
Ответ:
1. Species diversity.
2. stem that stores water.
3. invasive species.
4. migrating farther into the sea.
5. genetic diversity.