H2P-643

Mean kinetic energy and temperature

H2 Physics · JC 2 · Medium · Mean kinetic energy and temperature

An ideal gas in a container has density 1.5 kg m

^{-3}

and pressure

1.2 \times 10^{5}

Pa. Using

p = \tfrac{1}{3}\rho \langle c^{2} \rangle

, calculate the root-mean-square speed of the molecules.

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