For multiple reactions \[ \begin {align*} 2A &\rightarrow R \\ 2R &\rightarrow S \end {align*} \] the number of moles of \(S\) present when the number of moles of \(A\) and \(R\) are 0.3 and 0.5 respectively (Initially 2 moles of \(A\) are only present) are ________ (0.125 / 0.175 / 0.350 / 0.535)
For the liquid phase parallel reactions
\[ \begin {align*} A &\rightarrow R& r_R &= k_1C_A^2;& E_1 &= 80 \text { kJ/mol} \\ A &\rightarrow S& r_S &= k_2C_A;& E_2 &= 120 \text { kJ/mol} \end {align*} \] the desired product is \(R\). A higher selectivity of \(R\) will be achieved if the reaction is conducted at
Reactant \(R\) forms three products \(X\), \(Y\), and \(Z\) irreversibly, as shown below.
The reaction rates are given by \(r_X=k_XC_R\),
\(r_Y=k_YC_R^{1.5}\) and \(r_Z=k_ZC_R\). The activation energies for formation of \(X\), \(Y\), and \(Z\) are 40, 40 and 5 kJ/mol respectively. The pre-exponential factors for all reactions are nearly same. The desired conditions for MAXIMIZING the yield of \(X\) are
A feed of aqueous \(A\) (\(C_{A0}=40\) mol/m3) enters a mixed flow reactor, decomposes, and a mixture of \(A, R\) and \(S\) leaves. Find \(C_R\) and \(C_S\) and \(\tau\) for \(X_A=0.9\).
Substance \(A\) in a liquid reacts to produce \(R\) and \(S\) as follows:
A feed (\(C_{A0} = 1 \text{ mol/liter}, C_{R0} = 0 \text{ mol/liter}, C_{S0} = 0 \text{ mol/liter}\)) enters two mixed flow reactors in series, with \(\tau_1=2.5 \text{ min}\) and \(\tau_2=5 \text{ min}\). Knowing the composition in the first reactor (\(C_{A1}=0.4 \text{ mol/liter}, C_{R1}=0.4 \text{ mol/liter}, C_{S1}=0.2 \text{ mol/liter}\)), find the composition leaving the second reactor.
Substance \(A\) in the liquid phase reacts to produce \(R\) and \(S\) as by the following reactions:
The feed (\(C_{A0} = 1 \text{ mol/liter}, C_{R0} = 0 \text{ mol/liter}, C_{S0} = 0.3 \text{ mol/liter}\)) enters two mixed flow reactors in series, with \(\tau_1=2.5 \text{ min}\) and \(\tau_2=10 \text{ min}\). Knowing the composition in the first reactor (\(C_{A1}=0.4 \text{ mol/liter}, C_{R1}=0.2 \text{ mol/liter}, C_{S1}=0.7 \text{ mol/liter}\)), find the composition leaving the second reactor.
A feed of aqueous \(A\) (\(C_{A0}=40\) mol/m3) enters a plug flow reactor, decomposes, and a mixture of \(A, R\) and \(S\) leaves. Find \(C_R\) and \(C_S\) and \(\tau\) for \(X_A=0.9\). Enrol me in this course