Calculate Cr, Xc of the dissociation reaction 2HBr (gas) = H2 (gas) + Br2 (gas) if the initial concentration of substance C0(HBr) = 0.68 mol/l, the degree of dissociation HBr a = 2.54*10^-2. Calculate the direction of reaction under standard conditions at T = 500K and P = 1,013*10^5 Pa
