Is the statement true or false, with respect to the specified reaction in each case?

H2(g) + F2(g)= 2HF(g) If a vessel, containing an equilbrium mixture of these gases, is pressurized by adding helium gas, then the equilibrium position will shift to the left.

2SO3(g)= 2SO2(g) + O2(g) If an equilbrium mixture of these gases is released into a vessel of larger volume, then the equilibrium position will shift to the right.

Fe3+(aq) + SCN-(aq)= FeSCN2+(aq) If KOH is dissolved in this solution, then the equilibrium position will not shift. (Note that Fe(OH)3 is insoluble.)

2SO3(g)= 2SO2(g) + O2(g) If sulfur dioxide gas is added to an equilbrium mixture of these gases, then the equilibrium position will shift to the left.

H2(g) + I2(g)= 2HI(g) (Endothermic) If the temperature is increased, then the equilibrium constant for this reaction equation will decrease.