1.

For equal sized CSTRs in series carrying out 1^st order reactions of constant density, which of the following is true? (ki is the rate constant in a reactor ‘i’ in series)(a) k1 ≠ k2 ≠ … ≠ kn, τ1 = τ2 = … = τn(b) k1 = k2 = … = kn, τ1 = τ2 = … = τn(c) k1 = k2 = … = kn, τ1 ≠ τ2 ≠ … ≠ τn(d) k1< k2< …

Answer»

The correct OPTION is (B) k1 = k2 = … = kn, τ1 = τ2 = … = τn

Easy explanation: All the CSTRs are operated at the same TEMPERATURE. Hence, k1 = k2 = … = kn. The VOLUME of all the CSTRs is the same, V1 = V2= … = Vn. τ = \(\frac{V}{v_0},\) hence τ1 = τ2 = … = τn.



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