Chemistry · Chemical Equilibrium
What is the effect of adding helium gas at constant pressure to the following reaction at equilibrium? PCl5(g) ⇌ PCl3(g) + Cl2(g)
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The addition of helium will not affect the equilibrium.
- 2Helium will deactivate PCl5 and the reaction will stop.
- 3The equilibrium will shift backward due to suppression of dissociation of PCl5.
- 4The equilibrium will shift in the forward direction, producing more Cl2 and PCl3 gases.✓
Correct answer
The equilibrium will shift in the forward direction, producing more Cl2 and PCl3 gases.
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