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