Two gases in a mixture pass through a filter at rates proportional to the gases' rms speeds. (a) find the ratio of speeds for the two isotopes of chlorine, 35cl and 37cl, as they pass through the air. (b) which isotope moves faster?

1.03 ,35CL

The rms speed is given by formula:

RMS speed is inversely proportional to the molecular mass. To find ratio of rms speed we take the square root of ratio of molecular masses as:

the entire statement is true and correct.  

there's no diagram, nothing is illustrated, and no question is asked.

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.