NEET
- Exam
- NEET
- Subject
- Chemistry
- Chapter
- Thermodynamics (C)
NEET · Chemistry · Thermodynamics (C)
What is the internal energy change (∆U) for the dissociation of one...
What is the internal energy change (∆U) for the dissociation of one mole of NaCl into its ions in the gaseous state?
Options
- A+496 kJ mol–1
- B–496 kJ mol–1
- C+411.2 kJ mol–1
- D–411.2 kJ mol–1
Correct answer
D. –411.2 kJ mol–1
Step-by-step solution
The internal energy change for the dissociation of one mole of NaCl into its ions in the gaseous state is –411.2 kJ mol–1.