. Assertion The root mean square and most probable speeds of the molecules in a gas are the same.


Reason The Maxwell distribution for the speed of molecules in a gas is symmetrical.

 

Best Answer

Answer :(d)

Solution ||| Root mean square speed of molecules in a gas is defined as the square root of mean of squares of the speed of different molecules,

i.e.

root mean square

(according to kinetic theory of gases)

While most probable speed is the speed which maximum number of molecules in a gas have at constant temperature and is given by

root mean square

Also Maxwell distribution for the speed of molecules in a gas is asymmetrical.

Hence option (d) is true.

 

 

 

Talk to Our counsellor