Answered: To determine the entropy change for an…

To determine the entropy change for an irreversible process between states 1 and 2, should the integral e1 2 dQ/T be performed along the actual process path or an imaginary reversible path? Explain.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter4: The Second Law Of Thermodynamics

Section: Chapter Questions

Problem 15CQ: Is it possible for a system to have an entropy change if it neither absorbs nor emits heat during a...

See similar textbooks

Related questions

Q: There are 60,000 kcal/hr of heat extracted from 5.67 kg/s of carbon monoxide gas while the…

Q: The temperature of 1.00 mol of a monatomic ideal gas is raised reversibly from 300 K to 400 K, with…

A: Given:- n = 1 mole Tf = 400 K Ti = 300 K

Q: This is a symbolic version of Problem 52. When a metal bar is temporarily connected between a hot…

A: When there is change in heat Q at a constant absolute temperature T, the entropy changes as,

Q: When an aluminum bar is connected between a hot reservoir at 620 K and a cold reservoir at 358 K,…

Q: The change in entropy ih an adiabatic processis equalto Zero if the processisreversible and greater…

A: Any thing in nature is not 100% efficient. Similarly if we give heat to a system all heat energy…

Q: Explain Reversible and Irreversible Processes?

Q: Two blocks, each containing two moles of silver (Cp = 25. 35 joules per kelvin per mole) are brought…

Q: Calculate the Delta G value from the following data and state whether the process will be…

A: Temperature , T = 298 K Change in entropy , ∆S = +9.50 J /K Heat of reaction ,∆H = -85 KJ To find =…

Q: The entropy for some part of an isolated system may diminish, but must always result to a net…

A: Entropy of a system is given by ∆QT. For isolated system heat can not enter or exit from system. So…

Q: Calculate the change in entropy when the pressure of an ideal gas is changed isothermally from Pi to…

Q: On a hot summer day, 4.00×106 J of heat transfer into a parked car takes place, increasing its…

A: Change in entropy is given by the formula: ∆S=QTwhere,∆S is change in entropyQ is heat transferT is…

Q: A gas, confined to an insulated cylinder, is compressed adiabatically to half its volume. Does the…

A: The expression for the entropy of the gas is,

Q: calculate the entropy change for 0.0 moles of monoatomic ideal gas passing through the following…

Q: Suppose 4.00 mol of an ideal gas undergoes a reversible isothermal expansion from volume V1 to…

Q: What is the change in entropy of helium gas with total mass 0.140 kg at the normal boiling point of…

Q: On a hot summer day, 4.00×106J of heat transfer into a parked car takes place, increasing its…

A: The expression used to find average temperature is T=T1+T22 Insert values in the above equation…

Q: À 1.20 mol of an ideal gas at 350 K undergoes a free adiabatic expansion from V1 = 12.3 L to V2=…

Q: Can the entropy of an ideal gas change during an isothermal process?

Q: A diatomic ideal gas is brought from an initial equilibrium state at p1 = 0.50 atm and T1 = 300 K to…

A: The initial pressure, The final pressure,

Q: A 610-g quantity of an ideal gas undergoes a reversible isothermal compression at a constant…

A: In isothermal process temperature of system remains constant and it followed Boyle's law PV =…

Q: Heat flows from a steel object of mass 4.00 kg whose temperature is 400 K to an identical object at…

A: Here, the given objects are identical, the common temperature of the objects at equilibrium is (400…

Q: Does the entropy per cycle increase, decrease, or remain the same for (a) a Carnot engine, (b) a…

Q: A brass rod is in thermal contact with a constant-temperature reservoir at 130 C at one end and a…

A: a) The required total change in entropy of the rod is,

Q: One end of a copper rod is in thermal contact with a hot reservoir at 1455 K, and theother end is in…

Q: Is the following statement true or false? The change in entropy of an object undergoing an adiabatic…

A: Part-I: Introduction: The change in entropy of the system is defined as the change in the disorder…

Q: A 1.20 mol of an ideal gas at 350 K undergoes a free adiabatic expansion from V1 = 12.3 L to V2 =…

Q: When an aluminum bar is connected between a hot reservoir at 630 K and a cold reservoir at 298 K,…

Q: Estimate the change in molar entropy when a sample of argon (c) is compressed from 2.0 dm³ to 0.5…

Q: a 2.0kg block moving with an initial speed of 5m/s slides on a rough table and it stopped by the…

A: Given : m = 2 kg vi = 5 m/s T = 24°C = 24 + 273 = 297 K

Q: 2.5 kg of air in a cylinder initially at 6 MPa pressure and 350ᵒC expands reversibly isothermally up…

A: The given values with suitable variables are listed below. Here, m denotes the mass, P1 denotes the…

Q: A mass of 25 lbm of helium undergoes a process from an initial state of 50 ft3/lbm and 60F to a…

A: Given: mass (m) = 25 lb initial temperature (T1) = 600 F =5200 R initial state(μ1) = 50 ft3/lbm…

Q: 2.0 mol of a monatomic ideal gas are at a temperature of 300 K and a pressure of 1.0 atm. What…

Q: A forger takes out a 2.00kg carbon steel knife at 1500F and quenches it in oil at 140F. What is the…

Q: . A gas is allowed to expand (a) adiabatically and (b) isothermally. In each process, does the…

A: To determine,A gas is allowed to expand (a) adiabatically and (b) isothermally. In each process,…

Q: Consider 4.00 mol of an ideal gas with a constant‑volume molar specific heat of 12.5 J/(mol·K), an…

A: Entropy is the measure of the degree of randomness of a system. It is an extensive property that…

Q: The difference in entropy AS=Sg-SA for two states A and B of a system can be computed by AS=[dQ/T…

A: We know that there is always increase in the entropy of the universe. But for irreversible process…

Q: The entropy on n moles of a monatomic ideal gas is S= (: nR + nR In where Vo, no, and To are…

Q: Heat in the amount of 100 kJ is transferred directly from a hot reservoir at 1200 K to a cold…

Q: 3.2 Show that the entropy maximum principle encountered in the study of isolated systems [eq.…

Q: Suppose 5 mol of nitrogen gas is confined to the left side of a container. You open the stopcock,…

Q: One of the statements of the second law is that “heat cannot flow from a colder body to a warmer one…

Q: If a given volume is divided into V/32=€ and contains N=16 distinct particles, then its maximum…

Q: How much energy must be transferred as heat for a reversible isothermal expansion J. of an ideal gas…

A: Temperature (T) = 132oC Process = Isothermal Change in entropy = +46 JK

Question

To determine the entropy change for an irreversible
process between states 1 and 2, should the integral e1
2 dQ/T
be performed along the actual process path or an imaginary
reversible path? Explain.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

A copper rod of cross-sectional area 5.0 cm2 and length 5.0 m conducts heat from a heat reservoir at 373 K to one at 273 K. What is the time rate of change of the universe's entropy for this process?
Which of the following is true for the entropy change of a system that undergoes a reversible, adiabatic process? (a) S 0 (b) S = 0 (c) S 0
True or False: The entropy change in an adiabatic process must be zero because Q = 0.
A cylinder contains 500 g of helium at 120 atm and 20 . The valve is leaky, and all the gas slowly escapes isothermally into the atmosphere. Use the results of the preceding problem to determine the resulting change in entropy of the universe.
An ideal gas is taken from an initial temperature Ti to a higher final temperature Tf along two different reversible paths. Path A is at constant pressure, and path B is at constant volume. What is the relation between the entropy changes of the gas for these paths? (a) SA SB (b) SA = SB (c) SA SB
In an isochoric process, heat is added to 10 mol of monoatomic ideal gas whose temperature increases from 273 to 373 K. What is the entropy change of the gas?
Does the entropy increase for a Carnot engine for each cycle?
A sealed container holding 0.500 kg of liquid nitrogen at its boiling point of 77.3 K is placed in a large room at 21.0C. Energy is transferred from the room to the nitrogen as the liquid nitrogen boils into a gas and then warms to the rooms temperature. (a) Assuming the rooms temperature remains essentially unchanged at 21.0C, calculate the energy transferred from the room to the nitrogen. (b) Estimate the change in entropy of the room. Liquid nitrogen has a latent heat of vaporization of 2.01 105 J/kg. The specific heat of N2 gas at constant pressure is CN2 = 1.04 103J/kg K.
Assume a sample of an ideal gas is at room temperature. What action will necessarily make the entropy of the sample increase? (a) Transfer energy into it by heat. (b) Transfer energy into it irreversibly by heat. (c) Do work on it. (d) Increase either its temperature or its volume, without letting the other variable decrease. (e) None of those choices is correct.
A monoatomic ideal gas (n moles) goes through a cyclic process shown below. Find the change in entropy of the gas in each step and the total entropy change over the entire cycle.
Two moles of a monatomic ideal gas such as oxygen is compressed adiabatically and reversibly from a state (3 atm, 5 L) to a state with a pressure of 4 atm. (a) Find the volume and temperature of the final state. (b) Find the temperature of the initial state. (c) Find work done by the gas in the process. (d) Find the change in internal energy in the process. Assume Cv=5R and Cp=Cv+R for the diatomic ideal gas in the conditions given.
(a) What is the change in entropy if you start with 100 coins in the 45 heads and 55 tails macrostate, toss them, and get 51 heads and 49 tails? (b) What if you get 75 heads and 25 tails? (c) How much more likely is 51 heads and 49 tails than 75 heads and 25 tails? (d) Dues either outcome violate the second law of thermodynamics?