YienV144284 YienV144284
  • 29-10-2022
  • Physics
contestada

4kg of water starts at 19 degrees Celsius and is heated to 89 Celsius. how much energy was needed to accomplish this

Respuesta :

JericM432773 JericM432773
  • 29-10-2022

Q = m x c x Δt

Where:

m= mass = 4kg= 4000 g

c = specific heat = 4.186 J/g°C

Δt= temperature change = 89 - 19 = 70°C

Replacing:

Q = 4000 x 4.186 x 70° = 1,172,080 J

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