N2 and h2 are mixed in 14: 3 mass ratio. after certain time ammonia was found to be 40% by mol. the mole fraction of n2 at that time in the mixture of n2, h2, and nh3 is

Answer : The mole fraction of nitrogen will be 0.4615.

Explanation : When nitrogen ()and hydrogen ()are mixed, the mole ratio becomes 1 : 1.5,

Now we know that () is acting as a limiting agent.

So at the time of when 0.4 moles of () is been formed it requires 0.4 moles of () and 3.4 moles of ()

So, we find the the remaining () will be 0.6 and

() will be 0.3 mole present in mixture.

So, the mole fraction of () becomes = 0.6 / (0.6 + 0.4 + 0.3) Which becomes = 0.4615

the correct option is c.

isotopes refers to different forms of the same element with the same atomic number but different mass number as a result of difference in their neutron numbers. isotopes have different relative atomic mass but share the same chemical properties.