What Is the Root-Mean-Square Speed of Chlorine Gas Molecules at a Temperature

question 70

Multiple Choice

What is the root-mean-square speed of chlorine gas molecules at a temperature of 340 K? (R = 8.31 J/mol⋅K,N_A = 6.02 × 10²³,and the molecular mass of Cl₂ = 71)

• A) 1.1 × 10² m/s
• B) 3.5 × 10² m/s
• C) 8.2 × 10⁴ m/s
• D) 1.2 × 10⁵ m/s
• E) ​3.4 × 10⁴ m/s

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