17. Solved Example - II

The energy required to raise the temperature of an iron ball by $1\ K$ is $500\ JK^{-1}$. Calculate the amount of energy required to raise its temperature by $20\ K$.

 

From the given data,

 

Heat Capacity ($C'$) $=$ $500\ JK^{-1}$

 

Change in temperature ($\Delta T$) $=$ $20\ K$

 

Substitute the values,

 

Amount of heat energy required $=$   JJ/ (KgK)J / K