26. Q Q
The equation shows the equilibrium between dinitrogen tetroxide, N. O.. and nitrogen dioxide.
NO2
The colours of the reactant and product are also shown.
N. O.(9) 2NO (9)
colourless brown
The forward reaction is endothermic
Which statement is not correct?
A At equilibrium the concentrations of the reactant and the product are constant
B. At equilibrium the rate of the forward reaction is equal to the rate of the reverse reaction.
с When the pressure is increased a darker brown colour is seen.
D
When the temperature is increased a darker brown colour is seen.

n+h→nh3

we must remember that nitrogen and hydrogen are both diatomic molecules in their standard gas form. this adjusts the equation to

n2+h2→nh3

now we need to adjust coefficients in order to balance the atoms on each side of the equation. currently we have 2 atoms of nitrogen and 2 atoms of hydrogen on the reactant side and 1 atom of nitrogen and 3 atoms of hydrogen on the product side.

we can balance the hydrogens by placing a coefficient of 2 in front of ammonia and a coefficient of 3 in front of the hydrogen.

n2+3h2→2nh3

this gives us 6 hydrogen on each side and coincidentally the nitrogens now equal 2 on each side.

answerleaving cheese out to get moldy;