Physics-Laws of Thermodynamics
NEET Physics Laws of Thermodynamics MCQ Question
Type: MCQ-diagram based-Medium-Class 11
Consider a Born-Haber cycle diagram for the formation of NaCl(s) from its elements. Which step in the cycle represents the sublimation of sodium metal?
A
Na(s) → Na(g)
B
Na(g) → Na+(g) + e–
C
Na+(g) + Cl–(g) → NaCl(s)
D
1/2 Cl2(g) → Cl(g)
Correct Answer
Option A
Detailed Explanation
The sublimation of sodium metal is described by the process Na(s) → Na(g), as stated in the NCERT context on Born-Haber cycles and enthalpy changes.
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