A silicon (703J/kgC) measuring cup of 0.14kg has an initial temperature of 20 degrees celsius. Water of mass 0.25kg is added to the cup at 100 degrees celsius. An silver spoon of mass 0.05kg at 25 degrees celsius is then accidentally dropped into the water. Ignoring energy loss to the environment, what is the final temperature of the system when thermal equilibrium is reached?

A silicon (703J/kgC) measuring cup of 0.14kg has an initial temperature of 20 degrees celsius. Water of mass 0.25kg is added to the cup at 100 degrees celsius. An silver spoon of mass 0.05kg at 25 degrees celsius is then accidentally dropped into the water. Ignoring energy loss to the environment, what is the final temperature of the system when thermal equilibrium is reached?

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