What is the density (in grams per milliliter) of the rectangular bar if it has a mass of 186.77 g and measures 4.26 cm in length
1 answer:
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Answer:
The root mean square speed of O2 gas molecules is
<u>519.01 m/s</u>
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Explanation:
The root mean square velocity :
Molar mass , M
For He = 4 g/mol
For O2 = 2 x 16 = 32 g/mol
O2 = 32/1000 = 0.032 Kg/mol
First calculate the temperature at which the K.E of He is 4310J/mol
K.E of He =
K.E of He = 4310 J/mol
<u>Now , Use Vrms to calculate the velocity of O2</u>