A 65.0 g piece of chromium [c_p = 0.449 J/(g .$\degree$C)] is heated to a temperature of 120.0$\degree$C and then placed in contact with a 95.0 g piece of zinc at 20.0$\degree$C [c_p = 0.387 J/(g .$\degree$C)].What is the final temperature of the two pieces of metal?

Question

Quizplus · Accepted Answer

To find the final temperature, use the principle of conservation of energy: heat lost by chromium = heat gained by zinc. Set up the equation: (mass of Cr)(c_p of Cr)(T_initial Cr - T_final) = (mass of Zn)(c_p of Zn)(T_final - T_initial Zn). Solving this equation gives the final temperature as approximately 64°C.

A 650 G Piece of Chromium [Cp = 0 °\degree° C)] Is Heated to a Temperature of 120

A 650 G Piece of Chromium [C_p = 0 $\degree$ C)] Is Heated to a Temperature of 120