Question

The reaction for the formation of ammonia is given a

N2(g) + 3H2(g) = 21H3(g)
write the vate reaction for :
a) the formation of NH₃.
6) the disappearance of N and H₂​

Answer 1

a.

`rate_(NH_3)=(2d[NH_3])/(dt)`

b.

`rate_(N_2)=(-1d[N_2])/(dt) \\\\rate_(H_2)=(-3d[H_2])/(dt)`

Step-by-step explanation:

Hello there!

In this case, according to the law of rate proportions, it is possible to write the the rates of reaction for the formation of NH3 and the disappearance of the N2 and H2, by considering that the coefficient in the reaction for NH3 is +2 and those of N2 and H2, -1 and -3 respectively. Moreover, we set up these equations as derivatives as shown below:

a.

`rate_(NH_3)=(2d[NH_3])/(dt)`

b.

`rate_(N_2)=(-1d[N_2])/(dt) \\\\rate_(H_2)=(-3d[H_2])/(dt)`

Best regards!