Part A At extremely low temperatures, the specific heats of metals are proportional to the absolute temperature T. For example, the specific heat of copper is c = (0.011 J/kg K)T for temperatures below What is the entropy change of 850 g of copper as it is heated from 0.5 K to 2.0 K? 2 K. Express your answer with the appropriate units. HA ? AS = Value Units Submit Request Answer

Part A At extremely low temperatures, the specific heats of metals are proportional to the absolute temperature T. For example, the specific heat of copper is c = (0.011 J/kg K)T for temperatures below What is the entropy change of 850 g of copper as it is heated from 0.5 K to 2.0 K? 2 K. Express your answer with the appropriate units. HA ? AS = Value Units Submit Request Answer

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

In an engine, an almost ideal gas is compressed adiabatically to half its volume. In doing so, 2530 J of work is done on the gas. Part A How much heat flows into or out of the gas? Express your answer with the appropriate units. ? Value Units %3D Submit Request Answer Part B What is the change in internal energy of the gas? Express your answer with the appropriate units. ? AU = Value Units
Three moles of an ideal gas undergo a reversible isothermal compression at temperature 19.0 °C. During this compression, an amount of work totalling 1500 J is done on the gas. Part A You may want to review (Page) . What is the change of entropy of the gas? For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of Entropy change in a free expansion. ? AS = J/K Submit Request Answer
Problem 2 One mole of an ideal gas initially at 298 K and 100 k Pa is isothermally, reversibly compressed from 100 k Pa to 1000 k Pa. The internal energy U of an ideal gas only depends on temperature T and is independent of pressure p. For the process, please calculate the amount of each following quantity: a. Change in the internal energy of the ideal gas Au. b. Entropy produced A sir. c. Work done by the surrounding on the one mole of ideal gas. d. Heat transfer from the one mole of ideal gas to the surrounding. e. Entropy exchanged As between the one mole of ideal gas and the surrounding. f. Change in the molar entropy As of the one mole of ideal gas. g. Total entropy change A S,ot of the one mole of ideal gas plus the surrounding. h. Change in the mechanical energy of the one mole of ideal gas A Uy = – A (pv). i. Change in the thermal energy of the one mole of ideal gas Aur = A (Ts). j. Change in the chemical energy of the one mole of ideal gas Auc = Aµ. k. Change in the enthalpy…
Your calculator can't handle enormous exponents, but we can make sense of large powers of e by converting them to large powers of 10. If we write e = 10°, then eß = (10ª)³ = 108. What is the value of a? α = 0.43 Submit ✓ Correct Part B Previous Answers What is the multiplicity of a macrostate with entropy S = 0.80 J/K? Give your answer as a power of 10. IVE ΑΣΦ = 10; aß= 1.575 1023 Submit Previous Answers Request Answer X Incorrect; Try Again Provide Feedback ?
Part C Since the aluminum bar is not an isolated system, the second law of thermodynamics cannot be applied to the bar alone. Rather, it should be applied to the bar in combination with its surroundings (the lake). Assume that the entropy change of the bar is -1238 J/K. What is the change in total entropy A.Stotal? Express your answer numerically in joules per Kelvin ▸ View Available Hint(s) AStotal = ΕΧΕΙ ΑΣΦ ? You have already submitted this answer. Enter a new answer. No credit lost. Try again. J/K Submit Previous Answers
4.5 kg of water at 39 ^ °C is mixed with 4.5 kg of water at 67^°C in a well - insulated container. Part A Estimate the net change in entropy of the system. Express your answer to two significant figures and include the appropriate units.
A Carnot engine performs work at the rate of 480 kW while using 930 kcal of heat per second. Part A If the temperature of the heat source is 590 °C, at what temperature is the waste heat exhausted? Express your answer using two significant figures. ? TŁ = °C
Part A Consider the following two-step process. Heat is allowed to flow out of an ideal gas at constant volume so that its pressure drops from P₁ = 2.7 atm to P2 = 1.7 atm. Then the gas expands at constant pressure, from a volume of V₁ = 5.9 L to V₂ = 9.6 L, where the temperature reaches its original value. See the figure ( Figure 1). Calculate the total work done by the gas in the process. Express your answer to two significant figures and include the appropriate units. ☐ о W = Value ? Units Figure P P₁ b P2 P 1 of 1 Submit Request Answer Part B Calculate the change in internal energy of the gas in the process. Express your answer with the appropriate units. με ? AU = Value Units V₁ V2 V
please answer all parts they are related. A) What is the thermal efficiency of this engine B) what is the total change in entropy of this ideal gas after after completing the engine cycle?
Part A A gas is compressed from 600 cm to 200 cm³ at a constant pressure of 500 kPa. At the same time, 100 J of heat energy is transferred out of the gas. What is the change in thermal energy of the gas during this process? For general problem-solving tips and strategies for this topic, you may want to view a Video Tutor Solution of Fire piston. Express your answer with the appropriate units. μΑ AEth Value J
A 4.0-kg piece of aluminum at 29.4 °C is placed in 1.0 kg of water in a Styrofoam container at room temperature (20.0 °C). Part A Estimate the net change in entropy of the system. Express your answer to two significant figures and include the appropriate units. AS = μA Value Units ?
please do D and E