Atomic weight of nitrogen

Assertion: Molecular weight of oxygen is 16. Reason: Atomic weight of oxygen is 16.

At what temperature is the velocity of sound in nitrogen equal to its velocity in oxygen at 20^(@) C? The atomic weights of oxygen and nitrogen are in the ratio 16 :14

Atomicity of nitrogen is four.

Calculate the total K.E. of 1g of nitrogen at 300 K . Molecule weight of nitrogen = 28 .

When N_(2) is converted into NH_(3) , the equivalent weight of nitrogen will be: