Kinetic Theory of Gasses Video Lessons

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# Problem: What is the thermal speed of hydrogen (H2) molecules at 800 K?Please give your answer in km/s

###### FREE Expert Solution

Root mean square speed:

$\overline{){{\mathbf{v}}}_{{\mathbf{rms}}}{\mathbf{=}}\sqrt{\frac{\mathbf{3}\mathbf{R}\mathbf{T}}{\mathbf{m}}}}$ m is the molecular mass and R is the universal gas constant.

R = 8.13 J/mol•K

m = 2.02 × 10-3 kg/mol

###### Problem Details

What is the thermal speed of hydrogen (H2) molecules at 800 K?