If the initial volume of system was V0, then the volume of system after time, t, will be — Chemical Kinetics Chemistry Question

💡 Solution & Explanation

Initial moles = a (Volume V0). At time t, moles of A = a·e^-n1kt. Moles of A reacted = a(1 - e^-n1kt). Moles of B formed = (n2/n1) a(1 - e^-n1kt). Total moles = a [e^-n1kt + n2/n1 - (n2/n1)e^-n1kt] = a [n2/n1 + (1 - n2/n1)e^-n1kt]. Since V ∝ n at constant T and P, Vt = V0 [ n2/n1 + (1 - n2/n1)e^-n1kt ]. Therefore, correct answer is C.