If x is the fraction of PCl5 dissociated at equilibrium in the reaction PCl5 ⇌ PCl3 + Cl2 then starting with 0.5 mole of PCl5, the total number of moles of reactants and products at equilibrium is
A. 0.5 – x
B. x + 0.5
C. 2x + 0.5
D. x + 1
Answer:B
If x is the fraction of PCl5 dissociated at equilibrium in the reaction PCl5 ⇌ PCl3 + Cl2 then starting with 0.5 mole of PCl5, the total number of moles of reactants and products at equilibrium is
A. 0.5 – x B. x + 0.5 C. 2x + 0.5 D. x + 1