Ideal gas state
Use p = nRT/V. Enter SI values.
Pressure9.972e+4 Pa
← Topic 15INTERACTIVE REVISION
Ideal-gas toolkit
Change the values, predict the result, and then use the calculated answer to check your reasoning.
Change of state
For a fixed amount, p₁V₁/T₁ = p₂V₂/T₂.
Final pressure160.00 kPa
Mean molecular energy
At temperature T, ⟨Eₖ⟩ = 3kT/2.
At 300 K6.210e-21 J
Every ideal gas has this same mean translational energy at the same temperature.
Root-mean-square speed
Use cᵣₘₛ = √(3RT/M), with M in kg mol⁻¹.
At 300 K516.8 m s⁻¹
Try helium, M = 0.0040, and nitrogen, M = 0.028.