ayhamics For Practice 18.1 - Enhanced - with Feedback Part A Predict the sign of AS for each process. Drag the appropriate items to their respective bins. Reset Help H2O(g)→2H3(g) + O2(g) the sublimation of carbon dioxide CH3CH2OH(g)→CH;CH;OH(1) Positive Negative
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- If a plot of Ksp vs. T gives a straight line with slope equal to 7.9 × 103 K and y-intercept equal to 9.8, what is ΔH° for the process? 0.081 kJ/mol -66 kJ/mol 1.2 kJ/mol -950 kJ/molIn a closed system contains R-134a and it undergoes an isothermal process from state 1 to state 2. The initial tempetature and pressure of R-134a are 320 kPa and 400C respectively. ... The initial tempetature and pressure of R-134a are 320 kPa and 400C respectively. The final quality of R-134a is 50 percent.Calculate the Ksp for the dissociation of solid barium nitrate in water at 25.0 oC. The ΔGo for Ba(NO3)2(s) = -797 kJ/mole. Ba(NO3)2(s) ↔ Ba+2(aq) + 2NO3-1(aq) Group of answer choices 4.47x10-23 5.06x10-4 1.97x103 5.22x10-40 2.24x1022 0.992
- (a) For propylene plot the residual enthalpy and residual entropy functions over the reduced pressure range of 0.5 ≤ Pr ≤ 20 for constant reduced temperatures of Tr = 0.5, 1.3, 2.1 and 2.9. Place all results on a single plot. Use (a.1) Redlich-Kwong equation (a.2) Soave-Redlich-Kwong equation (a.3) Peng-Robinson equation (b) Modify the output of part (a) to allow a direct comparison of your plots with generalized plot available in the literature.The Ericsson cycle is composed of two isothermal processesand two isobaric processes, with regenerative heat exchangeduring the isobaric processes. Properties at the beginning ofisothermal expansion are 689.48 kpaa, 142 liters, and 282.2°C.For a ratio of isothermal expansion of 2 and a minimumtemperature of 4.4°C, find (a) ∆S during the isothermal process;(b) QA , QR, W, and e; (c) the volume at the end of isothermalexpansion and the overall ratio of expansion; and (d) Pm.For H2(g)+Br2(g)↽−−⇀2HBr(g),H2(g)+Br2(g)↽−−⇀2HBr(g), ?=7.2×10−4K=7.2×10−4 at 1362 K and Δ?∘ΔH∘ is positive. A vessel is charged with 48.2 Pa48.2 Pa HBr,HBr, 1430 Pa1430 Pa H2,H2, and 3295 Pa3295 Pa Br2Br2 at 1362 K. Will the reaction proceed to the left or right to reach equilibrium? right left Calculate the pressure (in pascals) of each species at equilibrium. ?H2= ?Br2= ?HBr= If the mixture is compressed to half of its original volume, will the reaction proceed to the left or the right to reestablish equilibrium? left neither right If the mixture is heated from 13621362 to 1421 K1421 K, will HBr be formed or consumed to reestablish equilibrium? consumed neither formed
- The Ksp of PbCl2 is 1.7x10-5 at 25oC. What is DGo? Is it possible to prepare a solution that contains Pb2+(aq) and Cl2(aq), at their standard-state concentrations?When nitric acid is produced industrially, nitrogen monoxide, NO, is first formed at high temperature. Bakefetr reacts NO on cooling further with oxygen to nitrogen dioxide: 2 NO(g) + O2 ⇌ 2 NO2 (g) Table 1: Thermodynamic data at 25°C. Bond ΔfHom Som Cop,m NO(g) 90.25 210.76 29.34 O2(g) 0.00 205.14 29.36 NO2(g) 33.18 240.06 37.20 1) Calculate (with all relevant intermediate calculations) the standard reaction Gibbs free energy, ΔrG25o, for reaction (1) at 25°C from the data in Table 1 2) Calculate (with all relevant intermediate calculations) the equilibrium constant K25, for reaction (1) at 25°C. 3) Industrially, however, the reaction does not proceed at 25°C but at 500°C. Therefore, calculate (with all relevant intermediate calculations) the standard reaction Gibbs free energy, ΔrG500o, for reaction (1) at 500°C under the assumption that the standard molar heat capacities, Cop, in Table 1 are independent of temperature in the interval [25°C, 500°C]One mole of an ideal gas is reversibly compressed from 25 kPa to 105 kPa at aconstant temperature of 27 ℃. Calculate ?, ?, Δ?, Δ?, and Δ?.
- A sample containing 2.50 moles of He (1 bar, 350. K) is mixed with 1.75 mol of Ne (1 bar, 350. K) and 1.50 mol of Ar (1 bar, 350. K). Calculate AGmixing and ASmixing.Which statements are true for Sn1 1. synchromous process 2. rearrangement is possibleA vessel of capacity 0.3 m3 is insulated and divided into two sections by a partition. One section is 0.2 m3in volume and initially contains H2at 2 bar and 127°C. The remaining section initially holds N2at 4 bar and27°C. The adiabatic partition is then removed, and the gases are allowed to mix. Determine : (i) The temperature of the equilibrium mixture,(ii) The pressure of the mixture, and(iii) The change in entropy for each component and total value.cv(N ) 2 = 0.744 kJ/kg K, cv(H ) 2 = 10.352 kJ/kg Kcp(N ) 2 = 1.041 kJ/kg K, cp(N ) 2 = 14.476 kJ/kg K.