5th Edition

ISBN: 8220103026918

Author: Walker

Publisher: PEARSON

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Chapter 18, Problem 91GP

The Carnot Cycle Figure 18-36 shows an example of a Carnot cycle. The cycle consists of the following four processes (1) an isothermal expansion from V₁ to V₂ at the temperature T_h; (2) an adiabatic expansion from V₂ to V₃ during which the temperature drops from T_h to T_c; (3) an isothermal compression from V₃ to V₄ at the temperature T_c; and (4) an adiabatic compression from V₄ to V₁ during which the temperature increases from T_c to T_h. Show that the efficiency of this cycle is e = 1 − T_c/T_h, as expected.

Chapter 18, Problem 91GP, The Carnot Cycle Figure 18-36 shows an example of a Carnot cycle. The cycle consists of the

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Chapter 18, Problem 90GP

Chapter 18, Problem 92GP

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A Carnot cycle is a thermodynamic process consisting of four stages: 1) isothermal expansion; 2) adiabatic expansion; 3) isothermal compression; and 4) adiabatic compression back to the original state. Assuming you have 1.00 mol of a monatomic ideal gas at standard state and the volume is doubling during stage 1 (isothermal expansion), calculate the change in internal energy for this part of the Carnot cycle. A)22.4 J B) 2.27 kJ C)-2.27 kJ D)-1.72 kJ E)0 J For the same system as in Question ^, calculate the change in temperature for the second stage (adiabatic expansion), assuming that the volume doubles yet again (that is, it is twice as large as the volume at the end of stage 1 but four times greater than the initial volume at the beginning of stage A) 0K B) 188K C) -188K D) -110K E) 110K

An ideal gas heat engine operates in a Carnot cycle between 227°C and 127°C. It absorbs 6 kcal at the higher temperature. The amount of heat (in kcal) converted into work is equal to (a) 4.8 (c) 1.6 (b) 3.5 (d) 1.2

***63 Figure 19-27 shows a cycle un- dergone by 1.00 mol of an ideal monatomic gas. The temperatures are T = 300 K, T2 = 600 K, and T3= 455 K. For 1- 2, what are (a) heat Q, (b) the change in internal energy AEnt- and (c) the work done W? For 2 3, what are (d) Q. (e) AEints and (f) W? For 3 → 1, what are (g) Q, (h) AEints and (i) W? For the full cycle, what are (j) Q. (k) AEnt, and (1) W? The initial pressure at point 1 is 1.00 atm (= 1.013 x 10 Pa). What are the (m) volume and (n) pressure at point 2 and the (o) volume and (p) pressure at point 3? Adiabatic Volume Figure 19-27 Problem 63. Pressure

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