*29 Go Figure 20-27 shows a re- versible cycle through which 1.00 mol of a monatomic ideal gas is taken. Assume that p = 2Po. V = 2Vo, Po = 1.01 x 10° Pa, and Vo = 0.0225 m. Calculate (a) the work done during the cycle, (b) the energy added as heat during stroke abc, and (c) the efficiency of the cycle. (d) What is the efficiency of a Carnot engine op- erating between the highest and low- est temperatures that occur in the cycle? (e) Is this greater than or less than the efficiency calcu- V, p Va. Po Volume Figure 20-27 Problem 29. Pressure

*29 Go Figure 20-27 shows a re- versible cycle through which 1.00 mol of a monatomic ideal gas is taken. Assume that p = 2Po. V = 2Vo, Po = 1.01 x 10° Pa, and Vo = 0.0225 m. Calculate (a) the work done during the cycle, (b) the energy added as heat during stroke abc, and (c) the efficiency of the cycle. (d) What is the efficiency of a Carnot engine op- erating between the highest and low- est temperatures that occur in the cycle? (e) Is this greater than or less than the efficiency calcu- V, p Va. Po Volume Figure 20-27 Problem 29. Pressure

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

A 1.00-mol sample of a monatomic ideal gas is taken through the cycle shown in Figure. At point A, the pressure, volume, and temperature are Pi, Vi, and Ti, respectively. In terms of R and Ti, find (a) the total energy entering the system by heat per cycle, (b) the total energy leaving the system by heat per cycle, and (c) the efficiency of an engine operating in this cycle. (d) Explain how the efficiency compares with that of an engine operating in a Carnot cycle between the same temperature extremes.
1.)In a given experiment, we want to study the expansion of a gas from state i to state f by three different paths in the pV diagram. Based on the following figure, where the pressure is indicated in atmospheres and the volume in liters, determine the work done by the gas, in joules: (a) Along the path iaf (b) Along the path if. (c) Along path ibf.
Temperatures: (A) (in W) An internal combustion engine may be described approximately as a cyclic heat engine, in which the working gas undergoes an Otto cycle. Assume (i) the engine speed is 10 strokes per second; (ii) the engine absorbs heat Qh and emits heat Qc for each cycle. (A) What is the power supplied as work? (B) What is the efficiency? Qh=640 joules; Qc = 455 joules. OA: 1275.9 OB: 1850.0 OC: 2682.5 OD: 3889.6 OE: 5640.0 OF: 8177.9 OG: 11858.0 OH: 17194.1 (B) OA: 0.096 OB: 0.113 OC: 0.132 OD: 0.154 OE: 0.180 OF: 0.211 OG: 0.247 OH: 0.289
D) How much work does this engine do ln one cycle? 3- A gas is compressed at a constant pressure of 1.2 Pa from 0.008 m³ to 0.002 m3. In the process, 130 J of energy leaves the gas by heat. (a) What is the work done on the gas? (b) What is the change in its internal energy?
Please help me
9-59E An ideal dual cycle has a compression ratio of 15 and a cutoff ratio of 1.4. The pressure ratio during constant- volume heat addition process is 1.1. The state of the air at the beginning of the compression is P =14.2 psia and T, = 75°F. Calculate the cycle's net specific work, specific heat addition, and thermal efficiency. Use constant specific heats at room temperature. %3D
ii) In a thermodynamic process, the pressure of a fixed amount of gas is changed so that the gas takes 30 joule of heat and 10 J of work is done by the gas (gas is expanded). If the initial internal energy of the gas is 25 J, estimate its final internal energy.
..48 GO As a gas is held within a closed chamber, it passes through the cycle shown in Fig. 18-41. Determine the energy transferred by the system as heat during constant-pressure process CA if the energy added as heat QAB during constant-volume process AB is 20.0 J, no energy is transferred as heat during adiabatic process BC, and the net work done during the cycle is 15.0 J. Pressure B A C 0 Volume Figure 18-41 Problem 48.
One mole of He gas with Cym = 3R/2 essentially inde- pendent of temperature expands reversibly from 24.6 L and 300 K to 49.2 L. Calculate the final pressure and temperature if the expansion is (a) isothermal; (b) adiabatic. (c) Sketch these two processes on a P-V diagram.
20-2 An ideal gas undergoes the thermodynamic process shown in the PV 2P. diagram in the figure. Determine whether each of the values (a) AU, (b)W, (c)Q for the gas is positive, negative, or zero. (Note that Wis the work done on the gas.) Hint: First use the ideal gas law to find the initial and final temperatures in terms of Po and Vo and determine if the final temperature is greater than, less than, or equal to the initial temperature. AU? W? Q? V₂₂ 2V₂
0O REDMI NOTE 8 100 AP 100 cc 300 cc Ex. (15): An ideal gas is taken around ABCA as shown in the above P-V diagram. The work done during a cycle is (3P, 3V) a) 2PV (b) PV (P,V) (P, 3V) (c) 1/2PV (d) Zero E Ex. (16): When a system is taken from state A to state B along the path ACB. 80 J of heat flow into the system and the system does 30 J of work.