Answer:
[tex]Q=9000J[/tex]
Explanation:
Hello.
In this case, since the energy involved in a heating process is computed via:
[tex]Q=mCp\Delta T[/tex]
Whereas m is the mass (0.4 kg), Cp is the specific heat (900 J/kg•°C) and ΔT the temperature rise (25 °C), the required heat turns out:
[tex]Q=0.4kg*900\frac{J}{kg\°C}* 25\°C\\\\Q=9000J[/tex]
It means that 9000 J of energy is transferred to attain that temperature raise.
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