Resultados Práctico 8
8.1
![e = W/Q_\textrm{in} e = W/Q_\textrm{in}](https://eva.fing.edu.uy/filter/tex/pix.php/5b00a74c9c15c31fb9d8bb4c549a7eee.png)
(trabajo por segundo)
(calor por segundo)
![e = 755/2971 = 0.254 e = 755/2971 = 0.254](https://eva.fing.edu.uy/filter/tex/pix.php/08dad2795f2c95c3636ae2da781faead.png)
8.2
![e_B=1/3 e_B=1/3](https://eva.fing.edu.uy/filter/tex/pix.php/ee03c2bc5d01c56d500ec3a4ce113a93.png)
![e_A=5/9 e_A=5/9](https://eva.fing.edu.uy/filter/tex/pix.php/3b3f9684410dacedf2878d666a392e20.png)
8.3
a)
b) ![Q_\textrm{out}=Q_{ca} = nC_p(T_f-T_i) =C_pP(V_f-V_i)/R=-727 kJ Q_\textrm{out}=Q_{ca} = nC_p(T_f-T_i) =C_pP(V_f-V_i)/R=-727 kJ](https://eva.fing.edu.uy/filter/tex/pix.php/308214c0ec0b4227723247c53b3429cc.png)
c_1) ![W_\textrm{neto}=W_{ab}+W_{bc}+W_{ca} = W_\textrm{neto}=W_{ab}+W_{bc}+W_{ca} =](https://eva.fing.edu.uy/filter/tex/pix.php/e1c5818e829098f191a386daa1bc0905.png)
![0+1/(\gamma-1)(P_cV_c-P_bV_b)-P(V_a-V_b) = -1133 kJ 0+1/(\gamma-1)(P_cV_c-P_bV_b)-P(V_a-V_b) = -1133 kJ](https://eva.fing.edu.uy/filter/tex/pix.php/974d67171e787afdbb700fe973af94a7.png)
c_2) ![W_\textrm{neto} = - Q_\textrm{tot}=-(Q_\textrm{in}+Q_\textrm{out})=-1133kJ W_\textrm{neto} = - Q_\textrm{tot}=-(Q_\textrm{in}+Q_\textrm{out})=-1133kJ](https://eva.fing.edu.uy/filter/tex/pix.php/313d9407048aade24866a49d2c41c416.png)
d) ![e=W/Q_\textrm{in} \times 100\% =61\% e=W/Q_\textrm{in} \times 100\% =61\%](https://eva.fing.edu.uy/filter/tex/pix.php/caa0c6ce1e4824dc6551858a12f05e31.png)
8.4
a) No cumple primera ley
b) No cumple primera ley
c) Eficiencia mayor que carnot (no cumple segunda ley)
d) Es posible construir
8.5
a) ![K=|Q_L|/|W|=5,7 K=|Q_L|/|W|=5,7](https://eva.fing.edu.uy/filter/tex/pix.php/bf08f1a69fadd08541f77399a24ffd43.png)
![W=32,5 kJ W=32,5 kJ](https://eva.fing.edu.uy/filter/tex/pix.php/97a691157f0887e0972542dc5ef9fcd4.png)
b) ![|W|=|Q_H|-|Q_L| |W|=|Q_H|-|Q_L|](https://eva.fing.edu.uy/filter/tex/pix.php/3490e593e92244f758b7a588d5cf65c2.png)
![|Q_H|=217,5 kJ |Q_H|=217,5 kJ](https://eva.fing.edu.uy/filter/tex/pix.php/543531d58ec7e0105beed3284eacb183.png)
8.6
![e = 42.7\% e = 42.7\%](https://eva.fing.edu.uy/filter/tex/pix.php/ee9a6980af246cd5245493c2feb58d26.png)
8.7
a) ![e = 1-T_L/T_H = 0,2 e = 1-T_L/T_H = 0,2](https://eva.fing.edu.uy/filter/tex/pix.php/e9954265b279be4cb37ca3eae5b44dd8.png)
![|W|=113,6 J |W|=113,6 J](https://eva.fing.edu.uy/filter/tex/pix.php/be27f3eb277925030419ea1a7111103d.png)
b) ![K=T_L/(T_H-T_L)=4,03 K=T_L/(T_H-T_L)=4,03](https://eva.fing.edu.uy/filter/tex/pix.php/3841e8e438cb163da0006ab462e24719.png)
![|W|=|Q_L|/K=305 J |W|=|Q_L|/K=305 J](https://eva.fing.edu.uy/filter/tex/pix.php/7ebd000bddb18cb0eb22f88b9341d1b6.png)
8.8
a) ![W_\textrm{neto}=W_{ab}+W_{bc}+W_{cd}+W_{da}= W_\textrm{neto}=W_{ab}+W_{bc}+W_{cd}+W_{da}=](https://eva.fing.edu.uy/filter/tex/pix.php/c757c7e68ab8c432deaf6d92d8e9b5b2.png)
![0-P_1(V_1-V_0)+0-P_0(V_0-V_1)=-P_0V_0=-2272 J 0-P_1(V_1-V_0)+0-P_0(V_0-V_1)=-P_0V_0=-2272 J](https://eva.fing.edu.uy/filter/tex/pix.php/ef09cfce7ca3d25ca1e78326d0b44fe6.png)
b) ![Q_{ab}=C_vV_0(P_1-P_0)/R=3409 J Q_{ab}=C_vV_0(P_1-P_0)/R=3409 J](https://eva.fing.edu.uy/filter/tex/pix.php/98022e99f5b4ce8a618faa55a1986b6d.png)
![Q_{bc}=C_pP_1(V_1-V_0)/R=11362 J Q_{bc}=C_pP_1(V_1-V_0)/R=11362 J](https://eva.fing.edu.uy/filter/tex/pix.php/3a2072c84cfb46686a42426bff5c0e57.png)
![Q_{cd}=C_vV_1(P_0-P_1)/R=-6818 J Q_{cd}=C_vV_1(P_0-P_1)/R=-6818 J](https://eva.fing.edu.uy/filter/tex/pix.php/c6a8e2a7513dc14cbc48863ee40bfa07.png)
![Q_{da}=C_pP_0(V_0-V_1)/R=-5681 J Q_{da}=C_pP_0(V_0-V_1)/R=-5681 J](https://eva.fing.edu.uy/filter/tex/pix.php/29d97b410e60216ee2e92e68106f2b3d.png)
![Q_\textrm{tot}=2272J=-W Q_\textrm{tot}=2272J=-W](https://eva.fing.edu.uy/filter/tex/pix.php/0451ecac1936a3114b628e1cf838da2d.png)
c) ![e=|W|/|Q_\textrm{in}|=0.154 e=|W|/|Q_\textrm{in}|=0.154](https://eva.fing.edu.uy/filter/tex/pix.php/68200b781e4537067f0a6ab18b6a68b8.png)
d) ![e_\textrm{carnot}=0.75 e_\textrm{carnot}=0.75](https://eva.fing.edu.uy/filter/tex/pix.php/277d18daa4ec78751ef4b52bc4f83fe5.png)
Última modificación: martes, 1 de agosto de 2023, 17:11