•18 Go A 2.0 mol sample of an ideal monatomic gas undergoes 2 the reversible process shown in Fig. 20-26. The scale of the vertical axis is set by T,= 400.0 K and the scale of the horizontal axis is set by S, = 20.0 J/K. (a) How much energy is absorbed as heat by the gas? (b) What is the change in the inter- nal energy of the gas? (c) How much work is done by the gas? T, S, Entropy (J/K) Figure 20-26 Problem 18. Temperature (K)

•18 Go A 2.0 mol sample of an ideal monatomic gas undergoes 2 the reversible process shown in Fig. 20-26. The scale of the vertical axis is set by T,= 400.0 K and the scale of the horizontal axis is set by S, = 20.0 J/K. (a) How much energy is absorbed as heat by the gas? (b) What is the change in the inter- nal energy of the gas? (c) How much work is done by the gas? T, S, Entropy (J/K) Figure 20-26 Problem 18. Temperature (K)

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)...

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1 mol of N2 gas in a volume of 300 K and 2 L undergoes an isothermal reversible expansion up to 20 L final volume. In this event, the gas; a) Calculate the work, considering it to be ideal.b) Calculate the work, assuming that it behaves according to the van der Waals equation.c) Calculate the percent error in work when the ideal gas equation is used instead of the van der Waals equation.
ii) Predict the heat taken by a gas, if the gas expands from 200 cm to 450 cm at constant pressure of 120000 Pa and the internal energy increases by 30 J.
(15-56) An inventor claims to have built an engine that produces 2.00 MW of usable work while taking in 3.00 MW of thermal energy at 425 K, and rejecting 1.00 MW of thermal energt at 15 K. Is there anything fishy about his claim?
(a) At 20 °C the volume of a copper sphere is 40 cm³. The coefficient of linear expansion of copper is 24 x 10-6 K-1. If the final volume is 40.5 cm3, what is the final temperature of the copper sphere? (b) Using the first law of thermodynamics explain with appropriate equation how does (i) internal energy (ii) work done, changes during the adiabatic expansion.
An ideal gas initially at 280 K undergoes an isobaric expansion at 2.50 kPa. The volume increases from 1.00 m3 to 3.00 m³ and 11.2 k) is transferred to the gas by heat. (a) What is the change in internal energy of the gas? kJ (b) What is the final temperature of the gas? K Need Help? Read It Master It
Note: - You are attempting question 3 out of 12 A Carnot's engine working between 277°C and 27°C produces 100 kJ work. Calculate the heat rejected from the engine. (a) Q = 20 kJ (b) Q = 40 kJ (c) Q =10 kJ (d) Q = 30 kJ %3D Answer C 22:54 89% 23°C Ca ) ENG 16-11-2021 to coarch
• tab (a) How much work is done on the steam when 4.21 mol of water at 100°C boils and becomes.4.21 mol of steam at 100°C at 1.00 atm pressure? (Assume the latent heat of vaporization of waterm 2.26 x 106 J/kg.) kJ aps lock (b) Assume the steam to behave as an ideal gas. Determine the change in internal energy of the system of the water and steam as the water vaporizes. kJ Submit Answer esc ! 1 Q A 1 N 2 $9² F2 W S # 3 X 20 F3 E D $ 69 + 4 C View Previous Question Question 8 of 19 View Next Question F4 R Home F 65 % F5 My Assignments T V MacBook Air 6 G F6 Y B Request Extension & 7 H U * N 00 8 FB 1 ( 9 T J K M ) O O D L V J6 P * . command ¡ 11 1
The figure shows two pathways for a sample of an ideal diatomic gas which is expanding in volume in going from A to C where path AC is an isothermal process. (Assume f= 5 for this diatomic gas.) P/103 Pa 4.00 3.50 3.00 2.00 1.59 1.00 A C B 2.50 5.50 0.00 1.00 2.00 3.00 4.00 5.00 6.00 V/m³ Drag/drop the following equations/values into the boxes below and hence determine the quantities required (note that you can only drop an item into a box with a matching colour). Please state all values in scientific notation and to the appropriate number of significant figures. Note that the following relationships are for an ideal gas with an initial state (P1, V1, T₁) and a final state (P2, V2, T2) where W is the work done on the gas, Q is the heat transferred to the gas and AU is the change in internal energy of the gas. Cp and Cy are the heat capacities of the gas at constant pressure and constant volume respectively. 2=0 Q= СРДТ Q = CVAT ==W Q = nRT In (V2/V1) W=0 W=-Q W=-PAV W=-nRT In (V2/V1) f…
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.
A 2.5 kg of gas at temperature 300 oK expands isothermally from an initial volume of 300 L to 600 L (a) What is the work done by the gas? (b) Estimate the heat added to the gas? (c) What is the final pressure of the gas? (The value of gas constant, R = 0.4615 kJ/kg-K, Cp = 1.8723 kJ/kg-K, Cv = 1.4108 kJ/kg-K)