A Sample of CdS Has to Be Heated to 30411

question 12

Multiple Choice

A sample of CdS has to be heated to 30411 K to thermally excite electrons from the valence band to the conduction band. What is the value of E_g based on these experiments?

• A) 3.2×10^-19 J
• B) 6.3×10^-19 J
• C) 4.2×10^-19 J
• D) 8.7×10^-19 J

---

Definitions:

Psychoanalytic

Psychoanalytic relates to a theory and method of therapy that emphasizes unconscious mental processes and childhood experiences in shaping behavior and personality.

Repressed Impulses

Desires or feelings that have been unconsciously excluded from conscious awareness.

PTSD

Post-Traumatic Stress Disorder is a psychological condition initiated by exposure to or witnessing traumatic incidents, marked by recurrent flashbacks, nightmares, and intense anxiety.

Danger-Detection

The cognitive and physiological process of identifying potential threats in the environment, enabling an organism to respond to hazardous situations.