Question

calculate the most probable speed of CO2 gas molecules at 27°C

Answer 1

We know that the root mean speed,

μ = √(3RT/M)

where R = 8.314

T = 27 ⁰C = 273+27 = 300 k

M of Co₂ = 44 g/mole = 44/1000 kg / mole

=n0.044 kg/ mole

Hence,

μ = √(3*8.314*300)/0.044

= 412.38 m/s

Hence the most probable speed of CO₂ gas molecule at 27⁰C is 412.38 m/s