31.5 Exercise 28

Data from the appendices and the periodic table may be needed for these problems.

The ceramic glaze on a red-orange Fiestaware plate is $\text{U}_{2} \text{O}_{3}$ and contains 50.0 grams of $^{238} \text{U}$ , but very little $^{235} \text{U}$. (a) What is the activity of the plate? (b) Calculate the total energy that will be released by the $^{238} \text{U}$ decay. (c) If energy is worth 12.0 cents per $\text{kW} \cdot \text{h}$, what is the monetary value of the energy emitted? (These plates went out of production some 30 years ago, but are still available as collectibles.)