8. Compare the rates of effusion for hydrogen and oxygen gases.

The  ratio of  effusion   of   rates of  oxygen  (O2)   to Hydrogen (H2)  is   calculated  as  follows

rate  of  O2/  rate of H2  =  square root  of   molar  mass  of  H2/molar  mass of O2  

=  square  root  =  2 /32  = 0.25

Explanation:

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

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(jacemorris04)