An object of mass \(10 g\) requires \(20 J\) of heat energy to change its temperature by \(20^{\circ} C\). Calculate the specific heat capacity of the object.
A. \(0.1 Jg ^{-1} K ^{-1}\) B. \(0.2 g ^{-1} K ^{-1}\) C. \(0.4 Jg ^{-1} K ^{-1}\) D. O
Correct Answer: A
Explanation
Specific heat capacity \(=\operatorname{m} \times c \times \Delta \theta\) \(=(0)(20)(20)\) Required, \(H =\operatorname{mc} \theta\) \begin{aligned} &20=10 \times c \times 20 K \\ &c=\frac{20}{200}=0.1 J^{-} K^{-1} \quad(A) \end{aligned}
