What is the relationship between the concentration of particles in a solution and the solution’s vapor pressure? as solute concentration increases, vapor pressure increases. as solute concentration increases, vapor pressure decreases. as the concentration of electrolytes increases, vapor pressure increases. however, as the concentration of nonelectrolytes increases, vapor pressure decreases. as the concentration of electrolytes increases, vapor pressure decreases. however, as the concentration of nonelectrolytes increases, vapor pressure increases.