Question

A 2.41 g lead weight, initially at 10.7 ∘C, is submerged in 8.08 g of water at 51.9 ∘C in an insulated container.

Question:
What is the final temperature of both the weight and the water at thermal equilibrium?
Express the temperature in Celsius to three significant figures.

Answer 1

[mass Pb x specific heat Pb x (Tfinal-Tinitial)] + [mass H2O x specific heat H2O x (Tfinal-Tinitial)] = 0
The only unknown here is Tfinal