Total molar flow rate

The total molar flow rate of each component, (N/ )z (Nb)z can then be calculated at position Z, from equations IV and V. 

Feed B into each tank separately, keeping the total molar flow rate as in Exercise 1. Run for the case nBi < hb2 and optimise the selectivity. 

The heating period begins with FLAG set initially to zero. When Xy > 1 then FLAG becomes 1, and the distillation period begins at statement 10. At each time interval the subroutine TCALC is used to make the iterative bubble point calculation. The component mass balance determines the removal of volatiles in the vapour, where the total molar flow rate, V, is determined from the energy balance. 

Using equation 2.4-4 in integrated form, V = FAodfA/( -rA), together with the stoichiometry of the reaction, from which the total molar flow rate at any point is... 

Fora 1000-tonne day-1 sulturic acid plant (100% H2SO4 basis), calculate the total molar flow rate (mol s 1) of gas entering the SO2 converter (for oxidation to SO3), for steady-state operation, if the fractional conversion (/so2) in the converter is 0.98, and the feed to the converter is 9.5 mol % SO2. (1 tonne = 1000 kg.)... 

The reaction is CH4 + 2S2 -> CS2 + 2H2S. Although this is a gas-phase reaction, since there is no change in T, P, or total molar flow rate, density is constant. Furthermore, since the reactants are introduced in the stoichiometric ratio, neither is limiting, and we may... 

The product FtCP, where Ft is the total molar flow rate and CP is the molar heat capacity of the flowing stream, may replace tic, in these equations, if the stream is an ideal solution. Integration of equation 21.5-8, or its equivalent, may need to take into account the dependence of mcP and FtCP on T and/or /A, and of (—AHRA) on T (see Example 15-7). However, compared to the effect of T on kA, the effect of T on (-AHRA) and cP is usually small. 

C A constan denoting the cost of work per unit energy Fj Total molar flow rate of process stream j Hj Molar enthalpy of process stream j K Vapor-liquid equilibrium constant for component i Lj Liquid molar flow rate of process stream j... 

Feed B at differing rates into each tank, but maintain the same total molar flow rate of B, as in Exercise 1. Carry out simulations for the kinetic case iibi < iiB2 and optimise the resultant selectivity. Show by simulation that high values for CP3 are given by low values of Cb-... 

The other mode of heat interchange with the surroundings in a flow reactor is by inflow and outflow of heat with the fluid entering and leaving the reactor. If the fluid is flowing into the reactor with volumetric flow rate Vg and has a heat capacity per reactor volume pCpo or with total molar flow rate Fg with a heat capacity per mole Cpo (written in bold), then the rate of enthalpy flow into the reactor is... 

Since the total molar flow rate changes with axial position additional equation dF... 

F Total molar flow rate, gmoles/sec soc Start of cycle... 

Thermodynamic control is achieved by calculating the different partial pressures based on the different molar flow rates. When Qn2 and Q" are known, then total molar flow rate Quart can be determined using Equation 8, and resulting partial pressures can be easily calculated according to Equation 9. 

QtoM Total molar flow rate in the bioreactor (molh-1)... 

Here rij = ntj Yj, where ntj is the total molar flow rate of the gas phase leaving the jth tray and fij = fit - Xj, where ntj is the total molar flow rate of the liquid phase leaving the jth tray. 

The mass flow streams at tray j are shown in Figure 6.1 for a countercurrent process of a dilute system. Here the total molar flow rate of the rising gas is constant at V moles/min while the total molar flow rate of the sinking liquid is constant at L moles/min. Both L and V are molar flow rates as long as Xj and Yj are molar fractions. If, however, Xj and Yj describe concentrations, measured in mo/e/m3, then L and V are volumetric flow rates measured in m3/min. 

For simplicity, we assume that the total molar flow rates of the liquid and gas phases remain constant, that is fij = L and rij = V for all j as described above. 

By a stoichiometric balance, calculate the following total molar flow rates... 

The mole fractions and the total molar flow rate at the anode channel inlet, %i in and Ti , serve as initial conditions ... 

According to the chemical equation there will be an increase in the molar flow rate as the reaction proceeds. The total molar flow rate, mp, is equal to molar flow rate into the reactor plus the increase in moles caused by the reaction. Therefore,... 

The relationship between the total molar flow rate of a gas and its volumetric flow rate is, to i good approximation, given by a form of the ideal gas equation of state ... 

A process stream on a flowchart is completely labeled if values or variable names are assigned to one of the following sets of stream variables (a) total mass flow rate or total mass and component mass fractions (b) mass flow rates or masses of each stream component (c) total molar flow rate or total moles and component mole fractions and (d) molar flow rates or moles of each stream component. If a total amount or flow rate or one or more component fractions are known for a stream, use (a) or(c) to incorporate the known values into the labeling. If neither the total nor any fractions are known, using (b) or (d) (component amounts or flow rates) often leads to easier algebra. Volumetric quantities should be labeled only if they are either given or requested in the problem statement. A flowchart is completely labeled if every stream is completely labeled. 

J. hint. The total molar flow rate (kmol/h) of the reactor effluent. 

From Table 3-3, the total molar flow rate is... 

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