For each problem, write the relevant design equation and plot all relevant concentration profiles (from t=0 until steady state) for the specific batch reactions. All reactions are constant temperature and constant volume. If initial concentrations are not given in the problem, they are equal to zero.

1st order, irreversible reaction. CA0 = 5 mol/L, k = 0.25 min-1. 1st order, reversible reaction. CA0 = 5 mol/L, k1 = 0.25 min-1, CB0 = 10 mol/L, k-1 = 0.15 min-1. 1st order, reversible reaction. CA0 = 10 mol/L, k1 = 0.10 min-1, CB0 = 5 mol/L, k-1 = 0.15 min-1