If you start with a higher pressure of reactant, the equilibrium constant will be larger?

Equilibrium constants aren't changed if there is a pressure

change of the system.

The only a change of temperature changes an equilibrium constant of a reaction.

Explanation:

2.5 L.

Explanation:

where, P is the pressure of the gas in atm.

V is the volume of the gas in L.

n is the no. of moles of the gas in mol.

R is the general gas constant,

T is the temperature of the gas in K.

P₁V₁ = P₂V₂

P₁ = 5.0 atm, V₁ = 3.5 L.

P₂ = 7.0 atm, V₂ = ??? L.

∴ V₂ = P₁V₁/P₂ = (5.0 atm)(3.5 L)/(7.0 atm) = 2.5 L.