High School

What is the final temperature when a 3.0 kg gold bar at 99°C is dropped into 0.22 kg of water at 25°C? The specific heat capacity of gold is 129 J/kg°C, and the specific heat capacity of water is 4,186 J/kg°C.

Answer :

Final answer:

The specific heat capacities of gold and water play a crucial role in determining the final temperature.Specific Heat Capacity: Gold: 129 J/kg°C Water: 4,186 J/kg°C

Explanation:

  1. Calculate heat gained by water: Q = mcΔT
  2. Calculate heat lost by gold: Q = mcΔT
  3. Set the two Q's equal and solve for final temperature

Specific Heat Capacity:

  • Gold: 129 J/kg°C
  • Water: 4,186 J/kg°C

Other Questions