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a) A gas bubble at the bottom of a lake has a volume of 50cc, where...

a) A gas bubble at the bottom of a lake has a volume of 50cc, where the pressure is 10 atm and temperature 50C, rises to the surface where the pressure is 1 atm and temperature 200C. What is the volume of the bubble at the surface?  

b)   What is the root mean square speed of Hydrogen and Oxygen molecules in the bubble at the surface?                                                                                                                                                             

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