use the references to access important values if needed for this question.\narrange the following elements…

use the references to access important values if needed for this question.\narrange the following elements and/or compounds in order of increasing average molecular speed. all are at the same temperature.\nammonia, argon, sulfur dioxide, neon\n1 (slowest) 2 3 4 (fastest)\n______ < ______ < ______ < ______\ndrag and drop your selection from the following list to complete the answer:\nne nh₃ so₂ ar
Answer
Explanation:
Step1: Calculate molar masses
Molar mass of (NH_3): (M_{NH_3}=14 + 3\times1=17\space g/mol) Molar mass of (Ar): (M_{Ar}=40\space g/mol) Molar mass of (SO_2): (M_{SO_2}=32+2\times16 = 64\space g/mol) Molar mass of (Ne): (M_{Ne}=20\space g/mol)
Step2: Use the formula for average molecular speed
The formula for the average molecular speed (\bar{v}=\sqrt{\frac{8RT}{\pi M}}), where (R) is the gas constant, (T) is the temperature and (M) is the molar mass. At the same temperature ((T) is constant), (\bar{v}\propto\frac{1}{\sqrt{M}}) (inverse - proportional to the square root of the molar mass).
Step3: Compare molar masses
Since (M_{SO_2}(64\space g/mol)>M_{Ar}(40\space g/mol)>M_{Ne}(20\space g/mol)>M_{NH_3}(17\space g/mol))
Answer:
(SO_2<Ar<Ne<NH_3)