Q: In crystal materials, the equilibrium number of vacancies in crystalline solid increases
(a)linearly with temperature
(b)exponentially with temperature
(c)exponentially and then decreases with temperature
(d)linearly and then exponentially with temperature
Correct Answer: (b)
The correct answer is (c): exponentially and then decreases with temperature. Subject: Geology & Geophysics | Sub-topic: General Geology Note: This answer was determined through AI-based research. Verify against the official answer key when available.