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In two or more complete sentences, explain how to calculate the amount of energy that is transferred when 150 g of cooper cools from 63.0 C to 21.0 C. Is the energy absorbed or released? The specific heat of copper is 0.387 J/g"c.

Respuesta :

superman1987

Answer: -2438.1 J and the energy is released.


Explanation:

The amount of heat can be calculated from the relation: Q = mCΔT,

  • Q is the amount of heat released or absorbed by the system.
  • m is the mass of the substance (Cu) (m = 150.0 g).
  • C is the specific heat capacity (C for Cu = 0.387 J/gC).
  • ΔT is the temperature difference (ΔT = 21.0 - 63.0 = -42.0 °C)
  • Q = (150 x 0.387 x -42) = -2438.1 J.
  • The energy here is released

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