Q84 · CSIR-NET Chemistry, December 2014
Paper: CSIR-NET December 2014 · Subject: Physical Chemistry · Chapter: Atomic and Molecular Term Symbol · Topic: Atomic And Molecular Term Symbols – General · Marks: 2 · Difficulty: Medium
Identify the speed distribution functions of $\mathrm{Ne}, \mathrm{Ar}$, and Kr with the curves in the figure below 1
(a)Ne-A, Ar-B, Kr-C
(b)Ne-B, Ar-C, Kr-A
(c)Ne-C, Ar-B, Kr-A
(d)Ne-C, Ar-A, Kr-B
Answer
Answer: C ✓ checked by 4AB · confidence high
Explanation
At the same temperature the heaviest gas, Kr, has the narrowest, lowest-speed curve (A), and the lightest, Ne, the broadest (C): Ne-C, Ar-B, Kr-A (c).
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