Question

A sample of glass bead weighs 34.5g. The beads are heated to 100.0C in a boiling water bath and poured into a beaker containing 100.0g H2O at 25C. when thermal equilibrium is reached, the temperature of the glass and the water is 29.9C. what is the specific heat of the glass

Answer 1

The heat lost by the beads is equal to the heat gained by the water. The specific heat capacity of water is 4.18 joules/gram. "w" will denote water's property and "b" will denote the beads' properties.
mw x Cpw x ΔTw = -mb x Cpb x ΔTb
100 x 4.18 x (29.9 - 25) = 34.5 x Cpb x (100 - 29.9)

Cpb = 0.84 joules/gram