Two Isotopes of Hydrogen Fuse to Form a Helium Nucleus

question 20

Multiple Choice

Two isotopes of hydrogen fuse to form a helium nucleus and a neutron: ²H + ³H → ⁴He + n
The masses are:
What is the Q value of this reaction?

• A) 1.9 MeV
• B) 2.5 MeV
• C) 2.8 MeV
• D) 17.6 MeV
• E) 938 MeV

---

Definitions:

Predetermined Overhead Rate

A rate used to allocate manufacturing overhead costs to products or job orders, calculated before the period begins based on estimated costs and activity levels.

Machine-Hours

The total duration of operation for machinery within a specified timeframe, used in cost and efficiency analysis.

Selling Price

The amount of money a customer pays for a particular product or service.

Unit Product Costs

The total cost associated with producing one unit of a product, including direct materials, direct labor, and overhead.