7-During a heat transfer process, the entropy of a system Never decreases Always increases - Always...

Question

Question

7-During a heat transfer process, the entropy of a system Never decreases Always increases - Always decreases Correct answer is indicated with the red square, please explain how to arrive to that answer - Sometimes decreases

engineering Mechanical-Engineering

Add a comment Improve this question Transcribed image text

Answer 1

Answer #1

Solution:

the correct answer should be may increase or may decrease because it will depend on whether heat is adding into the system or removing from the system.

but for the above case

option are limited

it may be thinking like that examiner already assumed that heat is transfer into the system

thus the best possible answer never decrease.

but in general if only ask that during the heat transfer process, the entropy of a system

then the answer would be it ill depends on the direction of heat transfer.

If heat is flowing into the system then entropy will increase

If heat is flowing out of system entropy will decrease.

Add a comment

Answer 2

Similar Homework Help Questions

7-During a heat transfer process, the entropy of a system Never decreases Always increases - Always...

7-During a heat transfer process, the entropy of a system Never decreases Always increases - Always decreases Correct answer is indicated with the red square, please explain how to arrive to that answer - Sometimes decreases
As a result of any natural process, the total entropy of any large system plus that...

As a result of any natural process, the total entropy of any large system plus that of its environment A) never decreases. B) sometimes decreases. C) never increases. D) always stays the same
5) As a result of any natural process, the total entropy of any large system plus...

5) As a result of any natural process, the total entropy of any large system plus that of its environment A) never decreases. B) sometimes decreases. C) never increases. D) always stays the same.

Please explain Heat Transfer and Changes in the Entropy of the Surroundings. Below are key questions....

Please explain Heat Transfer and Changes in the Entropy of the Surroundings. Below are key questions. 1. Know and understand that the entropy change for the universe is defined in terms of the entropy change for the system and the entropy change for the surroundings. 2 .Know that a process in which the system’s entropy decreases can still be spontaneous depending on the degree to which the surroundings’ entropy changes. 3. Know and understand that an exothermic process increases the...
During a reversible isothermal expansion, the entropy of an ideal gas: a) decreases b) stays constant...

During a reversible isothermal expansion, the entropy of an ideal gas: a) decreases b) stays constant c) increases When dry ice sublimes into gas at 194.65 K and 1 atm, the entropy a) increases b) stays constant c) decreases Which one of the following is true? a) The entropy of an isolated system can only stay constant or increase during a process b) We can construct a heat engine that extracts heat from a hot reservoir and delivers an equal...
5. (15) A closed system undergoes a process where heat transfer is allowed along the system...

5. (15) A closed system undergoes a process where heat transfer is allowed along the system boundary at constant temperature. For each case below, determine whether the change in entropy of the system is positive, negative, zero, or indeterminate. Explain your answer. a. Internally reversible process with heat transfer from the system to the surroundings b. Internally reversible process with heat transfer to the system from the surroundings; Internally reversible and adiabatic process; c. d. Internal irreversibilities present with heat...

Indicate whether the entropy of the system increases or decreases for each of the following processes....

Indicate whether the entropy of the system increases or decreases for each of the following processes. Include a BRIEF explanation. Make up a process for (d) and indicate if the entropy of the system increases or decreases in that process, and provide a brief explanation as well. a) Water boiling at 100.0°C b) 2H2(g) + O2(g) ---> 2H2O(g) c) liquid water freezes at 0.0°C d) e) water vapor expanding from 1.0L of volume to 2.0L of volume f) mixing 10mL...
Number five temperature increases and entropy increases temperature is unchanged and entropy increases temperature increases and...

Number five temperature increases and entropy increases temperature is unchanged and entropy increases temperature increases and entropy us unchanged temperature increases and entropy decreases number 6 none temperature increases and entropy increases temperature is unchanged and entropy increases temperature increases and entropy us unchanged temperature increases and entropy decreases Number seven spontaneous at all temperatures Non-spontaneous at all temperatures not enough information spontaneous at low temperature only spontaneous at high temperature only 5. Choose best answer from drop-down menu: 3...
True or False (Problems 1 through 10) 1. The change in entropy of a closed system...

True or False (Problems 1 through 10) 1. The change in entropy of a closed system is the same for every process between two specified states 2. The entropy of a fixed amount of an incompressible substance increases in every process for which temperature increases 3. A process that violates the second law of thermodynamics violates the first law of thermodynamics. 4. When a net amount of work is done on a closed system undergoing an internally reversible process, a...

2 and 2 3. During the 7. A pure ,the temperature increases linearly with entropy. The...

2 and 2 3. During the 7. A pure ,the temperature increases linearly with entropy. The following properties n: Τι = 55°C, Si = 1 kJ/K, T2 = T3 = 360°C, s2-3 kJ/K and S3 = 2 kJ/K. substance undergoes two reversible processes, 1 are Sketch this on a T - S diagram and find the total heat transfer.

7-During a heat transfer process, the entropy of a system Never decreases Always increases - Always...

Homework Answers

Add Answer to:
7-During a heat transfer process, the entropy of a system Never decreases Always increases - Always...

Post as a guest

Earn Coins