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At a temperature of 252.4°C, the average velocity (meters / second) of a propane, C3H8, molecule...

At a temperature of 252.4°C, the average velocity (meters / second) of a propane, C3H8, molecule is:

(a) 2.973 x 105 m/s     (b) 461.0 m/s              (c) 545.2 m/s              (d) 418.1 m/s

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