Concept explainers
For the reaction:
equilibrium can be expressed as:
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Chapter 16 Solutions
EBK NUMERICAL METHODS FOR ENGINEERS
- Which of the following expresses the equilibrium criterion for a closed system? O dG]7, = 0. O dS\u.v 0. All of the choices are correct.arrow_forwardFrom the following enthaipy changes Fe2O3{s) + 3 CO(g) → 2 Fe(s) + 3 CO2(g) C(s) + CO2(9) 2 CO(g) AH°rn = -27.00 kJ AH°xn = 172.00 kJ Calculate the value of AH° for the reaction: 2 Fe2O3(s) + 3C(s)→ 4 Fe(s) + 3 CO2(g)arrow_forwardThe resultant of a two forces 30N, 10N acting at a point be in an equilibrium and separated by 35°, is_____________ 38.62N 1491.49N 21.62N 28.62Narrow_forward
- 1. Given Figure 2 determine the vertical reaction at A in N2. Given Figure 2 determine the horizontal reaction at A in N 3.Given Figure 2 determine the horizontal reaction at C in N 4.Given Figure 2 determine the vertical reaction at C in N 5.Given Figure 2 determine the vertical reaction at B in N 6.Given Figure 2 determine the horizontal reaction at B in Narrow_forward1. The liquid-vapor equilibrium curve for R134A over the range from the triple point to the critical point may be expressed by the Wagner formula: T, (In[C])= ar + br15+cr + drº Where Pr & Tr are reduced pressure and temperature respectively and al-T, While the P and T are the saturation pressure (kPa) and temperature [K] in the reduced pressure & temperature relations, and the a,b,c, and d are constant. Drive an expression for enthalpy of condensation in terms of the constants a, b, c, d and T and Vig.arrow_forwardThe critical point of a substance is the state at which all the three phase exist in equilibrium. Select one: O True O Falsearrow_forward
- /Metal A melts at 1400°C, Metal B melts at 600°C. Thermal arrest data is obtained from cooling curves for the alloy of AB and is shown below %A O 10 20 30 50 60 80 90 100 1st Point 600 700 860 960 1140 1220 1320 1370 1400 2nd Point 600 630 690 760 910 1000 1160 1280 0 Determine (i) plot and label the equilibrium diagram(ii) for an alloy containing 50% of A and 50% B state(a) solidification commencing temperature(b) solidification ending temperature(c) percentage of solid &liquid *arrow_forward10 moles of methanol are contained in a closed, rigid cylinder at a pressure of 1.00 bar. Both liquid and vapor are present in the cylinder. What is the temperature in the cylinder. (C)arrow_forwardFig. 2 P R00 10ON 120N 3. What is the value of P in figure 2 if the system is in equilibrium? (a)120N; ((b)180N; (c)210N; (d)240Narrow_forward
- The principle of moments is applicable for equilibrium condition: Select one: True Falsearrow_forward1. Calculate Z and V for ethylene at 25°C and 12 bar by the following equations: a. The truncated virial equation with the following experimental values of virial coefficients: B=-140 cm ³ · mol -1,C=7200 cm 6. • mol -2 В Z = 1+-+ V2 V ВР b. The truncated virial equation, Z = 1 + with a value of B from the generalized Pitzer RT correlation for the second virial coefficient. c. The Redlich/Kwong equation d. The Soave/Redlich/Kwong equation e. The Peng/Robinson equationarrow_forwardThe following drawing shows the phase diagram at constant pressure for two liquids (A and B). When 30 g of pure A and 70 g of pure B are mixed: a) Reason what the diagram looks like and identify each part. b) At what temperature will the mixture start to boil? What will be the composition of the steam at that time? c) What is the amount of distillate at 130C°? 160 P= Tatm 150 140 O 130 120 T10 100 O 10 20 30 40 50 60 70 80 90 100 % B In weightarrow_forward
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