mikkaelared2020 mikkaelared2020
  • 10-04-2019
  • Chemistry
contestada

How much energy is required to raise the temperature of 3kg of iron from 20 degrees Celsius to 25 degrees Celsius

Respuesta :

jamuuj jamuuj
  • 11-04-2019

Answer:

6750 J

Explanation:

The specific heat capacity of iron is 450 J/kg/K

Quantity of heat = mcθ; where m is the mass and c is the specific heat capacity and θ is the temperature change.

Therefore;

m = 3 kg, c = 450 J/kg/K and θ = 5°C

Quantity of heat = 3 × 450 × 5

                           = 6150 Joules

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