3. Plot your data to create two lines with an intersection on a graph. Repeat any measurements that do not fall near the best-fit line. From the intersection, calculate the mole ratio of the reactants. Data Table: Experiment ml NaClO ml Solution B Temperature of Precipitate (degrees) 1 5 45 27.0 2 15 35 35.0 3 25 25 44.0 4 30 20 49.0 5 35 15 52.0 6 40 10 46.5 7 50 0 24.0 8 45 5 22.0 9 43 7 21.0 Graph: I eliminated the last two data points because it was making my graph weird.
An irreversible, spontaneous and homogeneous reaction was researched at an ambient temperature of 22.7°C. The specific reaction is given in Equation 1. CH_3 COOCH_2 CH_3+ NaOH →CH_3 COONa+CH_3 CH_2 OH (1) It is necessary to determine the reaction kinetics for the reaction in Equation 1. Reaction kinetics is an unavoidable stepping stone needed for reactor design and optimising these reactors to their full potential. It is a measurement of how quickly a reaction occurs.
The superficial velocity of reactant gas inserted into the reactor is very fast by the range of 0.4 to 0.7 m/s and it only taken few seconds of contact time from 5 to 20s in the reactor. Ratio for the gas feed into the fluidized bed reactor by the composition of C3H6: NH3: O2 is 1: 1-1.2: 10-12. The reactor are fed with slightly excess of ammonia of stoichiometry proportion to get the reaction closer to completion and fastening the process of catalyst regeneration. Ammoxidation of propylene give higher conversion till 98% and the selectivity above than 80%. Byproduct produces from this reaction by weight percentage (% wt) base on acrylonitrile are acetonitrile 2-4 % and hydrogen cyanide 14 to 18 %.
The melting point of the product from the bromination of aniline was 119.8-121.90c, which is in the range of the melting point of 2,4,6-tribromoaniline, 120-1220c, as indicated on PubChem, Open Chemistry Database (pubchem.ncbi.nlm.nih.gov). This verified the formation of the major products. Overall, one can say that the experiment was
So, taking CA = 2.624 mol/L as the point where the reactor change, so size ratio of first reactor, V1 and second reactor, V2 = ([( 1.6437-0.01) (2.624-0.78)])/([(0.1452-0.01) (10-2.624)]) = 3.021 Conversion rate of first reactor, CA / CA0 = (2.624/10 ) x 100% = 26.24 % Question 3 A R rR = k1CA A + A S rS = k2CA2 a) Instantaneous fractional yield of R, φ (R/A)= (moles of R formed)/(moles of A reacted) = 〖dC〗_R/(-dC_A ) = r_R/〖-r〗_A = (k_1 C_A)/(k_1 C_A+2 k_2 C_A^2 ) Instantaneous fractional yield of R, φ (R/(R+S))= r_R/(r_R+r_S )= (k_1 C_A)/(k_1 C_A+ k_2 C_A^2 ) b) Since φ (R/A)= r_R/〖-r〗_A CR max = ∫_0^(C_AO)▒〖φ 〖dC〗_A 〗 = ∫_0^(C_AO)▒〖(k_1 C_A)/(k_1 C_A+2 k_2 C_A^2 ) 〖dC〗_A 〗 = ∫_0^(C_AO)▒〖k_1/(k_1+2 k_2 C_A ) 〖dC〗_A 〗 = ∫_0^(C_AO)▒〖1/([1+(2 k_2 C_A)/k_1 ]) 〖dC〗_A 〗 CR max = k_1/〖2k〗_2 [ln〖(1+(2 k_2 C_A)/k_1 〗) ] 1¦0 = k_1/〖2k〗_2 [ln〖(1+(2 k_2)/k_1 〗) ] Let k1/k2 = K CRmax = 1- 0.18 = 0.82 mol/L CR = K/2 [ln〖(1+(2 )/K〗) ] Assume two values of K so that a graph of CR against K can be
This functions makes the PWR really safe to have running. A negative thing about the PWR is that it is not possible to make a fast neutron reactor with this design. Because water acts like a neutron moderator. This means that it can not produce the same amount of energy that other reactors with a fast neutron moderator
The experimental Ksp at 291.15 K was found to be 7.10 x 10-4 + 5 x 10-6 and compared to the literature value of 3.8 x 10-4. Since ΔH° reaction and ΔS° reaction was assumed to be nearly independent of temperature, the change in enthalpy and entropy of the reaction was found using the gradient and intercept respectively of the linear plot of lnKsp versus the reciprocal of temperature. Using van’t Hoff equation, ΔH° reaction and ΔS° reaction was found to be 44 ± 1.3 kJ K-1 mol-1 and 89 ± 4 J K-1 mol-1
The activation energy was calculated from the slope (Ea/RT) by linear plot of ln k on l/T, using the Arrhenius equation k = ln A- Ea/RT, where k is rate constant of the reaction at temperature T (in Kelvin), A is a constant and R is the universal gas constant. The catalytic reduction of 4-NP was studied at six different temperatures (25, 30, 35, 45, 55, 65 and 70oC) using olibanum gum capped AuNPs as catalyst. A linear relationship was found between ln k and the reciprocal temperature from which the activation energy was measured. A plot of ln k versus 1/T, shown in Figure. 10, is a linear curve for 4-NP reduction using AuNPs.
Platelet rich fibrin (PRF) belongs to second generation platelet concentrate was first developed in France by Choukroun et al.  This protocol does not require the addition of an anticoagulant or bovine thrombin. This technique makes it possible to collect a fibrin clot enriched with serum and platelets . The natural fibrin clot in PRF seems responsible for a slow release of growth factors for an extended period . The viable platelets in PRF release six important growth factors like, Platelet-derived (PDGF), Vascular endothelial growth factor (VEGF), Transforming growth factor (TGF), Insulin growth factor-1 (IGF), Epidermal growth factor (EGF) and Fibroblast growth factor (bFGF).
2CO + O2→2CO2 -------------------- (1) The oxidation of CO was carried out under the following reaction conditions: 100mg of catalyst with feed gas consisting of a lean mixture of 2.5 vol.% CO in air and total flow rate is maintained 60 mL/min. The air feed into the reactor was made free from moisture and CO2 by passing through it CaO and KOH pellet drying towers. The catalytic experiment was carried out in steady state conditions and the reaction temperature was increased from room temperature to 200oC with a heating rate of