Why Do Molecules Become IR-Active

question 69

Multiple Choice

Why do molecules become IR-active?

• A) Because they are in constant motion.
• B) Because they can absorb IR radiation (a photon of a specific wavelength in the IR region) because their dipole moments constantly change as the bond lengths change.
• C) Because they vibrate at low temperatures.
• D) Because their net dipole is zero.
• E) Because they are very close together.

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Definitions:

Process Costing

An accounting method used to allocate costs to units of product in processes where the products are indistinguishable from each other, such as in chemical processing or food production.

Conversion Costs

The total of direct labor costs plus manufacturing overhead costs, indicating the expenditures involved in transforming raw materials into completed products.

Materials Costs

The expense incurred for raw materials that are transformed into finished products in the manufacturing process.

Equivalent Units

A term in process costing used to convert partially completed units into a number of complete units for costing purposes.