A two-level system has N₁ = 6000 and N₂ = 4000 when the temperature is 500 K. Part A What is SE? Express your answer with the appropriate units. SE = 2.8x10-21 J Submit ✓ Correct Correct answer is shown. Your answer 0.0175 eV (=2.804x10-21 J) was either rounded differently or used a different number of significant figures than required for this part. Part B At what temperature would 85% of the particles be in the lower energy level? Express your answer in kelvins. 17 ΑΣΦ T= Previous Answers Submit Provide Feedback Request Answer ? K Next >

A two-level system has N₁ = 6000 and N₂ = 4000 when the temperature is 500 K. Part A What is SE? Express your answer with the appropriate units. SE = 2.8x10-21 J Submit ✓ Correct Correct answer is shown. Your answer 0.0175 eV (=2.804x10-21 J) was either rounded differently or used a different number of significant figures than required for this part. Part B At what temperature would 85% of the particles be in the lower energy level? Express your answer in kelvins. 17 ΑΣΦ T= Previous Answers Submit Provide Feedback Request Answer ? K Next >

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter31: Radioactivity And Nuclear Physics

Section: Chapter Questions

Problem 3PE: (a) Repeat Exercise 31.2, and convert the energy to joules or calories. (b) If all of this energy is...

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