How Much Energy Is Released in the Reaction ²H

question 40

Multiple Choice

How much energy is released in the reaction ²H + ²H → ⁴He? [m(²H) = 2.012102 u, m(⁴He) = 4.002603 u]

• A)20 MeV
• B)18 MeV
• C)13 MeV
• D)12 MeV
• E)36 MeV

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Definitions:

Variable Costing

An accounting method that accounts only for variable production costs (direct materials, direct labor, and variable manufacturing overhead) in product cost calculations, excluding fixed manufacturing overhead.

Unit Product Cost

The complete expense incurred to manufacture a single item, encompassing materials, workforce, and indirect costs.

Contribution Margin

The difference between sales revenue and variable costs, indicating how much revenue contributes to covering fixed costs.

Variable Costing

A bookkeeping approach that incorporates just the variable costs of production (such as direct materials, direct labor, and variable factory overheads) into the costs of products.