Question

what is the escape velocity of air?

Answer 1

The escape velocity from Earth is about 11.186 km/s (6.951 mi/s; 40,270 km/h; 25,020 mph) at the surface. More generally, escape velocity is the speed at which the sum of an object's kinetic energy and its gravitational potential energy is equal to zero; an object which has achieved escape velocity is neither on the surface, nor in a closed orbit (of any radius). With escape velocity in a direction pointing away from the ground of a massive body, the object will move away from the body, slowing forever and approaching, but never reaching, zero speed. 
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Answer 2

Hi friend......

question :-what is the escape velocity of air?

Answer :- The escape velocity is about 11.2km/s , which is approximately 33 times the speed of sound.