At a temperature of 273.15 K and pressure of 1 atm or 1.01325 bar, many gases have an approximate volume of 22.4 L. (This is a very useful approximation.) What are the average speeds of (a) He atoms and (b) Kr atoms under these conditions? Compare your answer for part a with the answer in Example 19.1. Assume 1 mole of gas.
Example 19.1
For 1 mole of He gas, a volume of 25.00 L of gas exerts a pressure of 0.8770 bar. What is the average velocity of the helium atoms in the system?
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