A sample of copper is heated to 122.0 C and then placed in a container of 500 g of water at 25.3 °C. The final temperature of the water and copper is 29.7 °C. What is the mass of the copper assuming that all the heat lost by the copper is gained by the water? The specific heat capacity of copper is 0.20 J/°C g.

Respuesta :

Answer:

Mass of copper is 500.542 g.

Explanation:

Initial temperature of copper = [tex]122^{0}[/tex]C

specific heat capacity of copper = 0.20 J/°C g

Mass of water = 500 g

Initial temperature of water = [tex]25.3^{0}[/tex]C

Specific heat capacity of water = 4.2 J/°C g

Final temperature of water and copper = [tex]29.7^{0}[/tex] C

Heat loss by copper = Heat gained by water

[tex]m_{c}[/tex][tex]c_{c}[/tex]Δ[tex]T_{c}[/tex] = [tex]m_{w}[/tex][tex]c_{w}[/tex]Δ[tex]T_{w}[/tex]

[tex]m_{c}[/tex] x 0.2 x (122 - 29.7) = 500 x 4.2 x (29.7 - 25.3)

[tex]m_{c}[/tex] x 0.2 x 92.3 = 500 x 4.2 x 4.4

[tex]m_{c}[/tex] x 18.46 = 9240

[tex]m_{c}[/tex] = [tex]\frac{9240}{18.46}[/tex]

     = 500.5417

mass of copper is 500.542 g.

Answer:

500.542

Explanation:

edge