justin234333 justin234333
  • 25-09-2020
  • Chemistry
contestada

97.2 kJ of heat is added to a 12.0 kg block or iron. what is the temperature change of the block?

Respuesta :

sebassandin
sebassandin sebassandin
  • 03-10-2020

Answer:

[tex]\Delta T=18.24\°C[/tex]

Explanation:

Hello,

In this case, since the equation for computing the heat in terms of mass, specific heat and temperature change is:

[tex]Q=mCp\Delta T[/tex]

For the given heat and mass, and considering the specific heat of iron to be 0.444 kJ/(kg°C), the resulting temperature change is:

[tex]\Delta T=\frac{Q}{mCp}=\frac{97.2kJ}{12.0kg*0.444\frac{kJ}{kg\°C}}\\ \\\Delta T=18.24\°C[/tex]

Best regards.

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