1462.5Joules
The formula for calculating the amount of heat gained is expressed as:
[tex]Q=mc\triangle t[/tex]where:
• m is the mass of the ball of iron = 250.0g
,• c is the specific heat capacity = 0.450J/gC
,• △t is the change in temperature = 32 - 19 = 13oC
Substitute the given parameters
[tex]\begin{gathered} Q=250g\times\frac{0.450J}{g^0C}\times13^0C \\ Q=1462.5Joules \end{gathered}[/tex]Therefore the amount of heat the ball gained is 1462.5Joules