Calcium-39 Undergoes Positron Decay

question 14

Multiple Choice

Calcium-39 undergoes positron decay. Each positron carries 5.49 MeV of energy. How much energy will be emitted when 0.0025 mol of calcium-39 decays?

• A)13.2 kJ
• B)1.32 × 10 ⁴ kJ
• C)1.32 × 10 ⁶ kJ
• D)1.32 × 10 ⁹ kJ
• E)None of these choices are correct.

---

Definitions:

Aid To Management

Support or assistance provided to management teams through various tools, techniques, or resources to enhance decision-making and efficiency.

Manufacturing Overhead Budget

A financial outline estimating the expected indirect production costs, such as utilities and rent for manufacturing facilities.

Overhead Costs

Indirect expenses related to the day-to-day running of a business, such as rent, utilities, and administrative costs.

Merchandise Purchases Budget

A financial plan that estimates the cost of goods a business needs to buy to meet its sales goals.