Molecules 45441

The mean square velocity of the gas molecules is 1200 m/s. What pressure does this gas exert on the vessel wall when its density is 0.03 kg/m³?

Correct answer:

p =  14400 Pa

Step-by-step explanation:

$$\begin{gathered} v=1200\text{m/s} \\ \rho =0.03{\text{kg/m}}^3 \\ p=\frac{1}{3}\cdot \rho \cdot v^2=\frac{1}{3}\cdot 0.03\cdot 1200^2=14400\text{Pa} \end{gathered}$$

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