What is the minimum temperature for a cloud to excite emission lines from H₂?
A)10 K
B)30 K
C)100 K
D)300 K
E)1000 K

Question

Quizplus · Accepted Answer

The minimum temperature for a cloud to excite emission lines from molecular hydrogen (H₂) is around 100 K. This is because molecular hydrogen requires a certain amount of energy to transition to an excited state, which typically occurs at temperatures of about 100 K or higher.

What Is the Minimum Temperature for a Cloud to Excite