Chapter 10, Problem 51A

Interpretation Introduction

Interpretation:

Specific heat capacity of gold is 0.13 J/g°C. It must be converted to cal/ g°C.

Concept Introduction:

The following conversion factor should be used.

1 cal is equal to 4.184 J.

Answer to Problem 51A

Heat capacity of gold is 0.03 cal/ g°C.

Explanation of Solution

As per the conversion factor,

  $\begin{array}{l}\text{4}\text{.184 J=1cal}\\ \text{Or,1J=}\frac{\text{1}}{\text{4}\text{.184}}\text{ cal}\\ \text{Or,0}\text{.13 J=}\frac{\text{1×0}\text{.13}}{\text{4}\text{.184}}\text{ cal = 0}\text{.03cal}\text{.}\end{array}$

Conclusion

Thus heat capacity of gold is 0.03 cal/ g°C.