Question

The temperature at which ${\text{H}}_{\text{2}}$ has same rms speed (at 1 atm) as that of ${\text{O}}_2$ at NTP is:

• A. 37 K
• B. 17 K
• C. 512 K
• D. 27 K

Answer 1

Answer: (B)

17 K

$\sqrt{\frac{3\times R\times T_{H2}}{2}}=\sqrt{\frac{3\times R\times 273}{32}}$

$T_{H2}=17K$ Ans.