205) At 250^oC, the vapour density of PCl₅ is 100. Calculate the degree of dissociation at this temperature:

206) When two reactants A and B are mixed to give products C and D, the reaction quotient Q, at the initial stages of the reaction:

207) 6 gm hydrogen reacts with 9.023 x 10²³ chlorine molecules to form HCl. If total pressure of the reaction is 800 mm, then partial pressure of HCl will be:

208) 20% part of N₂O₄ is dissociated in NO₂ at 1 atm pressure, then the value of K_p will be:

209) Vapourisation 1 mol of PCl₅ is done in a 1 L container. If 0.2 mol of Cl₂ is formed at equilibrium, then what will be the value of equilibrium constant?