Exhibit 22-1 The Following Question(s) Pertain to GaAs, Which Has a Band

question 32

Multiple Choice

Exhibit 22-1
The following question(s) pertain to GaAs, which has a band gap of 140 kJ·mol.
Refer to Exhibit 22-1. What temperature is required to thermally excite electrons from the valence band to the conduction band?

• A) 14000 K
• B) 15890 K
• C) 16840 K
• D) 22180 K

---

Definitions:

Factory Overhead Rate

is a calculation used to allocate the indirect costs of manufacturing to individual units produced, typically based on direct labor hours or machine hours.

Direct Materials

Raw materials that are directly traceable to the production of a specific finished good.

Direct Labor Rate

The cost per hour for labor directly involved in producing goods or delivering services, typically used in calculating the total cost of production or service provision.

Machine Hours

A measure of production time, representing the total hours a machine is operated in the production of goods.