contestada

2 The temperature of a piece of copper with a mass of 95.4 g increases
from 298.0 K to 321.1 K when the metal absorbs 849 J of energy as
heat. What is the specific heat of copper?

Respuesta :

  • Mass=m=95.4g
  • Initial temperature=298K
  • Final temperature=321.1K
  • Heat=Q=849J

[tex]\\ \sf\longmapsto \Delta T=T_f-T_i[/tex]

[tex]\\ \sf\longmapsto \Delta T=321.1-298[/tex]

[tex]\\ \sf\longmapsto \Delta T=23.1K[/tex]

Now..

  • Heat capacity=c

[tex]\\ \sf\longmapsto Q=mc\Delta T[/tex]

[tex]\\ \sf\longmapsto c=\dfrac{Q}{m\Delta T}[/tex]

[tex]\\ \sf\longmapsto c=\dfrac{849}{95.4(23.1)}[/tex]

[tex]\\ \sf\longmapsto c=\dfrac{849}{2203.74}[/tex]

[tex]\\ \sf\longmapsto c=0.385[/tex]