A heat engine using a monatomic gas follows the cycle shown in the figure. (Figure 1).

Ag(s) + Pb 504(s) → Pb(s) + Agt (ac) + say (ac) Datos A H°298: 53, 22 kcal A Gers: 53,41 cal Acp298: -8,7 Cal K(T) = ? In KT = In K298 + + 1 T 55,8 8,7×103³ dł. √248 TF2 TF - 4,4 In T = +28,8-2,81 × 10-4 T

The vapor pressures of the components, A and B, in a binary solution have been modeled and found to obey хара exp(0.75 XB) A A exp(0.75x) where XÃ and are the mole fractions, and PA* and PB* are the vapor pressures of each pure substance at room temperature. (a) If PA* = 0.084 bar and the total pressure of a mixture with XA = 0.40 is 0.125 bars, what is PB*, the vapor pressure of pure B (in bars)? P = X P А P₁ = X_P B QUESTION 14 B B * * Continuation of the previous problem (b) Assuming that the vapor is an ideal gas, what is the mole fraction of component B in the vapor phase?

Determine the signs of (d) Q, (e) W, and (f) ΔU associated with process BC.   D) q, posative, negative, or zero E) w, posative, negative, or zero F) Δu, posative, negative, or zero