4NH3+5O2 <=>4NO + 6H2O
Using the definition of Kp, we have
Kp=(Pno^4*Ph2o^6)/(Pnh3^4*Po2^5)
where Pno=partial pressure of NO, etc.
The numerical value for a given temperature can be evaluated when the actual partial pressures are known.
I think answer is
C. Something that can be observed or measured while changing the identity of the substance
Answer:
B. The pressure has increased
Explanation:
It is kept constant
There is the answer if it helped