Answer :
In order to calculate the amount of heat, we can use the formula below:
[tex]Q=m\cdot c\operatorname{\cdot}\Delta T[/tex]Where Q is the heat, m is the mass, c is the specific heat and DeltaT is the change in temperature.
So, using m = 0.08 kg, c = 460 J/kg°C and DeltaT = -60°C (from 100°C to 40°C), we have:
[tex]\begin{gathered} Q=0.08\operatorname{\cdot}460\operatorname{\cdot}(-60) \\ Q=-2208\text{ J} \end{gathered}[/tex]Therefore the heat given out is 2208 Joules.