Q29 · CSIR-NET Chemistry, December 2014
Paper: CSIR-NET December 2014 · Subject: Physical Chemistry · Chapter: Gaseous State · Topic: Gaseous State – General · Marks: 2 · Difficulty: Medium
Identify the speed distribution functions of Ne, Ar, and Kr with the curves in the figure below 
(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 T the heaviest gas (Kr) has the lowest, sharpest distribution (A) and the lightest (Ne) the broadest, most spread-out one (C). Ne–C, Ar–B, Kr–A (c).
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