Notice the big increase from 1 to 50 atm, but smaller increases after that. The position of the equilibrium is unaffected by the change in pressure due to the change in volume since n is the same for both sides, therefore volume is the same for both reactants and products. Neither side is favored by a change in pressure caused by a change in volume. If the volume is increased, the pressure decreased the eq. The reaction rate increases.
Many gaseous reactions are very slow at room temperature.
K c 's change with temperature . As we heat the mixture the concentration of the products increases, the numerator, the concentration of the reactants, the denominator, decreases, so K c must increase with an increase in temperature for this reaction. For ammonia production, the addition of heat reduced the amount of product formed as can be deduced from the decrease in K c with increased temperature. Assume equilibrium has been reached and all species are present in a closed container.