Physical Chemistry: Which of the following statements is true? A) A quantum mech
ID: 926651 • Letter: P
Question
Physical Chemistry:
Which of the following statements is true?
A) A quantum mechanical system with discrete energy levels behaves as if it has a continuous energy spectrum if the energy difference between energy levels E satisfies the relationship E < < kT.
B) A quantum mechanical system with discrete energy levels behaves as if it has a continuous energy spectrum if the energy difference between energy levels E satisfies the relationship E >> kT.
C) If the energy levels can not be distinguished in an experiment, the system has a continuous energy spectrum from the viewpoint of the observer.
D) If the energy levels can be distinguished in an experiment, the system has a continuous energy spectrum from the viewpoint of the observer.
A and C B and D B and C A and DExplanation / Answer
If energy gap is decreasing r than discrete levels become continuos .
Hence statement A is right.
If energy levels are continuos ( levels closer to each other) then it is difficult to to distinguis energy levels.
hence statement C is true.
Hence A and C true.