23. (6pt) Given the following reaction determine \(\triangle G_{\text {ron }}^{\circ}(\) in \(K J)\), and \(K\) for the following reaction at \(25^{\circ} \mathrm{C}\) ? Is this reaction spontaneous?
$$ 4 \mathrm{MnO}_{4}+12 \mathrm{H}^{*} \rightarrow 4 \mathrm{Mn}^{2+}+6 \mathrm{H}_{2} \mathrm{O}+5 \mathrm{O}_{2} $$
\(\frac{\text { Reduction } 1 / 2 \text { Rxns }}{\mathrm{MnO}_{4}^{\circ}+8 \mathrm{H}^{*}+5 e^{\circ}} \rightarrow \mathrm{Mn}^{2+}+4 \mathrm{H}_{2} \mathrm{O} \quad \mathrm{E}^{\circ}\) red: \(+1.49 \mathrm{~V}\)
\(\mathrm{O}_{2}+4 \mathrm{H}^{+}+4 \mathrm{e}^{*} \rightarrow \mathrm{2H}_{2} \mathrm{O} \quad \mathrm{E}^{\circ}\) rod \(+1.23 \mathrm{~V}\)
Given the following reaction determine (in kJ), and for the following reaction at...
Calculate \(\Delta \mathrm{H}^{\circ}\) and \(\Delta \mathrm{G}^{\circ}\), using data in Appendix C. Determine whether each reaction is endothermic or exothermic, and spontaneous or nonspontaneous.a) \(\quad 2 P b O(s)+N_{2}(g) \rightarrow 2 P b(s)+2 N O(g)\)b) \(\mathrm{CS}_{2}(l)+2 \mathrm{H}_{2} \mathrm{O}(l) \rightarrow \mathrm{CO}_{2}(g)+2 \mathrm{H}_{2} \mathrm{~S}(g)\)
Given the standard enthalpy changes for the following two reactions:(1) \(2 \mathrm{C}(\mathrm{s})+2 \mathrm{H}_{2}(\mathrm{~g}) \longrightarrow \mathrm{C}_{2} \mathrm{H}_{4}(\mathrm{~g}) \quad \Delta \mathrm{H}^{\circ}=\mathbf{5 2 . 3} \mathrm{kJ}\)(2) \(2 \mathbf{C}(\mathbf{s})+\mathbf{3 H}_{\mathbf{2}}(\mathbf{g}) \longrightarrow \mathbf{C}_{\mathbf{2}} \mathbf{H}_{\mathbf{6}}(\mathbf{g}) \quad \Delta \mathrm{H}^{\circ}=-\mathbf{8 4 . 7} \mathrm{kJ}\)what is the standard enthalpy change for the reaction:(3) \(\mathbf{C}_{\mathbf{2}} \mathbf{H}_{\mathbf{4}}(\mathbf{g})+\mathbf{H}_{\mathbf{2}}(\mathbf{g}) \longrightarrow \mathbf{C}_{\mathbf{2}} \mathbf{H}_{\mathbf{6}}(\mathbf{g}) \quad \Delta \mathrm{H}^{\circ}=?\)Given the standard enthalpy changes for the following two reactions:(1) \(\mathrm{N}_{2}(\mathrm{~g})+2 \mathrm{O}_{2}(\mathrm{~g}) \longrightarrow 2 \mathrm{NO}_{2}(\mathrm{~g}) \quad \Delta \mathrm{H}^{\circ}=66.4 \mathrm{~kJ}\)(2) \(2 \mathbf{N}_{2} \mathrm{O}(\mathrm{g}) \longrightarrow \mathbf{2 N}_{2}(\mathbf{g})+\mathbf{O}_{2}(\mathrm{~g}) \quad \Delta \mathrm{H}^{\circ}=-\mathbf{1 6...
In this question we will determine the maximum achievable transmission rate in the downlink of a wireless communication network. Here are the specifications of interest:- Base station (BS) transmit power. \(P_{t x}=200 \mathrm{~mW}\)- Transmitter (BS) anterma gain: \(G_{C X}=7 d B\)- Receiver (terminal) antenna gain: \(G_{\mathrm{rx}}=3 \mathrm{~dB}\)- Quality requirement: \(\mathrm{SNR}>5 \mathrm{~dB}\)- Carrier frequency: \(f=2 \mathrm{GHz}\)- Receiver noise figure: \(F=3.98=6 \mathrm{~dB}\)- Ambient temperature: \(T=290^{\circ} \mathrm{K}\)- Boltzmann constant: \(k=1.38 \times 10^{-23}\) joule \({ }^{\circ} K\)- Path loss: \(P L=\left(\frac{4 \pi}{\lambda}\right)^{2} d^{4}\)- Maximum...
Calculate \(E_{\text {cell }}^{\circ}\) for a iron-cadmium cell in which the cell reaction is$$ 2 \mathrm{Fe}^{2+}(\mathrm{aq})+\mathrm{Cd}^{2+}(\mathrm{aq}) \rightarrow 2 \mathrm{Fe}^{3+}(\mathrm{aq})+\mathrm{Cd}(\mathrm{s}) $$$$ \begin{array}{ll} \mathrm{Fe}^{3+}+e^{-} \rightarrow \mathrm{Fe}^{2+} & E^{\mathrm{O}}=0.77 \mathrm{~V} \\ \mathrm{Cd}^{2+}+2 e^{-} \rightarrow \mathrm{Cd} & E^{\mathrm{O}}=-0.40 \mathrm{~V} \end{array} $$is oxidized in the reaction: \(2 \mathrm{Fe}^{2+}(\mathrm{aq})+\mathrm{Cd}^{2+}(\mathrm{aq}) \rightarrow 2 \mathrm{Fe}^{3+}(\mathrm{aq})+\mathrm{Cd}(\mathrm{s})\)Select one:A. -0.37 VB. 0.37 VC. -1.17 VD. 1.17 VE. none of these
A sample of \(\mathrm{N}_{2} \mathrm{O}_{3}\) contains 1 moles of nitrogen. Use the following atomic masses: \(\mathrm{N}=14, \mathrm{O}=16\).$$ \begin{array}{|l|l|l|} \hline \text { The number of moles of } \mathrm{N}_{2} \mathrm{O}_{3} \text { present }= & \mathrm{mol} \mathrm{N}_{2} \mathrm{O}_{3} \\ \hline \text { The mass of the sample }= & \mathrm{g} \mathrm{N}_{2} \mathrm{O}_{3} \\ \hline \text { The number of moles of oxygen in the sample }= & & \mathrm{mol} \mathrm{O} \\ \hline \text { The mass of oxygen in the sample...
23. Place the following in order of increasing IE1.\(\begin{array}{lll}\mathrm{N} & \mathrm{F} & \text { As }\end{array}\)A) \(\mathrm{N}<\mathrm{As}<\mathrm{F}\)B) \(A s<N<F\)C) \(\mathrm{F}<\mathrm{N}<\mathrm{As}\)D) As \(<F<N\)E) \(\mathrm{F}<\mathrm{AS}<\mathrm{N}\)24. Place the following in order of decreasing metallic character.\(\mathrm{P} \quad\) As \(\quad \mathrm{K}\)A) \(\mathrm{P}>\mathrm{As}>\mathrm{K}\)B) \(\mathrm{As}>\mathrm{P}>\mathrm{K}\)C) \(\mathrm{K}>\mathrm{P}>\mathrm{As}\)D) \(\mathrm{As}>\mathrm{K}>\mathrm{P}\)E) \(K>A s>P\)25. Choose the paramagnetic species from below.A) Ti4+B) \(\mathrm{O}\)C) \(\mathrm{Ar}\)26. Give the set of four quantum numbers that could represent the electron gained to form the Br- ion from the \(\mathrm{Br}\) atom.A) \(n=4, l=2, m l=1, m s=-\frac{1}{2}\)B) \(n=4,...
7) The net ionic equation for the reaction between aqueous solutions of \(\mathrm{HF}\) and \(\mathrm{KOH}\) isA) \(\mathrm{HF}+\mathrm{KOH} \rightarrow \mathrm{H}_{2} \mathrm{O}+\mathrm{K}^{+}+\mathrm{F}\)B) \(\mathrm{HF}+\mathrm{OH}^{-} \rightarrow \mathrm{H}_{2} \mathrm{O}+\mathrm{F}\)C) \(\mathrm{HF}+\mathrm{K}^{+}+\mathrm{OH}^{-} \rightarrow \mathrm{H}_{2} \mathrm{O}+\mathrm{KF}\)D) \(\mathrm{H}^{+}+\mathrm{OH}^{-} \rightarrow \mathrm{H}_{2} \mathrm{O}\)E) \(\mathrm{H}^{+}+\mathrm{F}+\mathrm{K}^{+}+\mathrm{OH}^{-} \rightarrow \mathrm{H}_{2} \mathrm{O}+\mathrm{K}^{+}+\mathrm{F}\)
Question #1 (60 pts): A closed-loop digital control system having a proportional controller is given in the following figure\(G_{1}(s)=\frac{1-\exp (-T s)}{s(s+1)}, G_{2}(s)=\frac{1}{s}, G_{3}(s)=\frac{1-\exp (-T s)}{s(s+2)}\)where \(\exp (\cdot)\) denotes the standard exponential function.a) Obtain the overall transfer function of the closed-loop system.b)Obtain the range of proportional gain (i.e., \(\mathrm{K}\) ) that guarantees the system stability via Jury'sStability Test.c) Assume that the input of the system is a unit step input (i.e., \(r(t)=u_{s}(t)\) ), obtain the gain value from the range obtained in...
helpp
3. For the hypothetical reaction A+B → C the following rate data (with and without catalyst) were obtained: Rate, M/s Rate, M/s ALM B., Muncatalyzed) (catalyzed) 0.100 0.200 3.51 x 10 7.14 x 10 0.100 0.100 1.75 x 10 7.14 x 10 0.0500 0.200 1.76 x 10 3.57 x 10 0.0500 0.100 8.80 x 10 3.57 x 10 Based on these data: a. Determine the uncatalyzed and catalyzed rate laws for this reaction, and the corresponding rate constants. (16...
For the reaction below, find answers for the following 3 questions. In acidic solution, O, and Mn2 ions react spontaneously 0;(&) + Mnaq) + H2O(1) 0.8) + MnO (3) + 2H+ (aq) -0.84 V 1. Calculate in Vand enter to 2 decimal places. 2. Calculate AG (kJ/mole) for the reaction shown above and enter to 1 decimal place 3. Calculate Kat 298 K Enter e notation for large or small numbers.eg, enter 6.7e-34 for 6.7*10% 6.7e34 for 6.7*10% Enter a...