Calculate the root - mean - square speeds of helium atoms and nitrogen molecules in m/s at 25° C​

a) root - mean - square speeds of helium atom  is 43.1 m/s

b)  root - mean - square speeds of nitrogen molecule  is 16.29m/s

Explanation:

The formula used for root mean square speed is:

where,

= root mean square speed

R = gas constant =

T = temperature =

M = atomic mass  

a) root - mean - square speeds of helium atom

b)  root - mean - square speeds of nitrogen molecule