The conversion for a first order liquid phase reaction. A → B in a CSTR is 50%. If another CSTR of the same volume is connected in series, then the % conversion at the exit of the second reactor will be_____________________?

Question

Accepted Answer

75. For a first-order reaction in series CSTRs of equal volume, the overall conversion is calculated using the formula: X_out = 1 - (1 - X_in)^2. With X_in = 0.5, X_out = 1 - (1 - 0.5)^2 = 1 - 0.25 = 0.75 or 75%.