(III) A Carnot cycle, shown in Fig. 20-7, has the following conditions: V a = 7.5L, V b = 15.0L, T H = 470°C, and T L = 260ºC. The gas used in the cycle is 0.50 mol of a diatomic gas, γ = 1.4. Calculate ( a ) the pressures at a and b; ( b ) the volumes at c and d. ( c ) What is the work done along process ab? ( d ) What is the heat lost along process cd? ( e ) Calculate the net work done for the whole cycle. ( f ) What is the efficiency of the cycle, using the definition e W / Q H ? I Show that this is the same as given by Eq. 20-3.
(III) A Carnot cycle, shown in Fig. 20-7, has the following conditions: V a = 7.5L, V b = 15.0L, T H = 470°C, and T L = 260ºC. The gas used in the cycle is 0.50 mol of a diatomic gas, γ = 1.4. Calculate ( a ) the pressures at a and b; ( b ) the volumes at c and d. ( c ) What is the work done along process ab? ( d ) What is the heat lost along process cd? ( e ) Calculate the net work done for the whole cycle. ( f ) What is the efficiency of the cycle, using the definition e W / Q H ? I Show that this is the same as given by Eq. 20-3.
(III) A Carnot cycle, shown in Fig. 20-7, has the following conditions: Va = 7.5L, Vb = 15.0L, TH = 470°C, and TL = 260ºC. The gas used in the cycle is 0.50 mol of a diatomic gas, γ = 1.4. Calculate (a) the pressures at a and b; (b) the volumes at c and d. (c) What is the work done along process ab? (d) What is the heat lost along process cd? (e) Calculate the net work done for the whole cycle. (f) What is the efficiency of the cycle, using the definition e W/QH? I Show that this is the same as given by Eq. 20-3.
Helicobacter pylori (H. pylori) is a helically-shaped bacterium that is usually found in the stomach. It burrows through the gastric mucous
lining to establish an infection in the stomach's epithelial cells (see photo). Approximately 90% of the people infected with H. pylori will
never experience symptoms. Others may develop peptic ulcers and show symptoms of chronic gastritis. The method of motility of H.
pylori is a prokaryotic flagellum attached to the back of the bacterium that rigidly rotates like a propeller on a ship. The flagellum is
composed of proteins and is approximately 40.0 nm in diameter and can reach rotation speeds as high as 1.50 x 103 rpm. If the speed
of the bacterium is 10.0 μm/s, how far has it moved in the time it takes the flagellum to rotate through an angular displacement of 5.00
* 10² rad?
Zina Deretsky, National Science
Foundation/Flickr
H. PYLORI CROSSING MUCUS LAYER OF STOMACH
H.pylori Gastric Epithelial
mucin cells
gel
Number
i
318
Units
um
H.pylori…
T1. Calculate what is the received frequency when the car drives away from the radar antenna at a speed v of a) 1 m/s ( = 3.6 km/h), b) 10 m/s ( = 36 km/h), c) 30 m /s ( = 108 km/h) . The radar transmission frequency f is 24.125 GHz = 24.125*10^9 Hz, about 24 GHz. Speed of light 2.998 *10^8 m/s.
No Chatgpt please will upvote
Chapter 20 Solutions
Physics for Science and Engineering With Modern Physics, VI - Student Study Guide
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The Second Law of Thermodynamics: Heat Flow, Entropy, and Microstates; Author: Professor Dave Explains;https://www.youtube.com/watch?v=MrwW4w2nAMc;License: Standard YouTube License, CC-BY