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2 years ago

Cual es el calor específico de una sustancia que tiene una masa de 15 g y una capacidad térmica de 0.550 calC

Chemistry

1 answer:

mr Goodwill [35]2 years ago

6 0

Answer:

Explanation:

Q = Ce . m .ΔT

Q : calor

Ce : calor especifico

m: masa

ΔT : variación de temperatura

capacidad térmica : 0,550 cal / °C

lectura :

por 1 °C se tiene 0,550 cal

por lo tanto tenemos datos de la temperatura y del calor

pero no olvidar las unidades en el sistema internacional :

Ce : J / kg . K

J: joules

kg: kilogramo

K: kelvin

pasar de gramos a kilogramos

pasar de calorías a joules

pasar de grado celsius a kelvin

1000g equivale a 1kg

15g equivale a 0,015 kg

K= °C + 273 ⇒ formula para pasar de grado celsius a kelvin

K= 1 + 273

K= 274

1 caloría equivale a 4,184 joules

0,550 caloría equivale a 2,3012 joules

ahora como todos los datos ya están en el S.I remplazamos en la formula

Q = Ce . m .ΔT

2,3012 = Ce . 0,015.274

Ce=0,5599 J / kg. K

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