Whats in red is what needs to be answered Initial temperatur

What\'s in red is what needs to be answered.

Initial temperature of 20^oC     metal:

Final temperature of 28 ^oC       metal:

Initial temperature of water from calorimeter: 20 ^oC

Final water temperature from calorimeter: 28 ^oC

(use 1 cal/gm-

Solution

The heat lost by the metal = the heat absorbed by the water + calorimeter.

Heat absorbed by water = mass H2O x sp.ht. H2O x delta T

Heat absorbed by calorimeter = Cp x delta T

Total heat absorbed by water + calorimeter = heat lost by metal

Heat lost by metal = mass metal x sp.ht. metal x delta T

sp.ht. metal = Heat lost by metal/mass*delta T