Which of the following statements best describes the 2nd law of thermodynamics? The total entropy of a a reservoir must stay the same or increase. The change in internal energy for an ideal gas is given as A U=mc AT. V Heat energy will always be transferred from a hotter object to a colder object. Around a complete cycle, the net heat and net work additions must sum to zero. A reversible cyclic engine can convert all the heat input it receives into useful work output.

Q: 4 2 A. Carnot cycle B. ideal heat engine cycle OC. Carnot refrigeration cycle O D. Reversed…

A: As we know that in the refrigeration Carnot cycle is considered as reversed Carnot cycle so that is…

Q: Answer true (T) or false (F) as appropriate 1. Entropy is a measure of irreversibilities in…

A: 1. TRUE; entropy is a measure of degree of randomness or irreversibilities in processes. 2.FALSE;…

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A: Entropy is associated with the irreversibility of a system, it denotes the degree of randomness of a…

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A: Given data  At inlet 1 (liquid water) P1 = 9.0 bar T1 = 45oC = (45 +273)K = 318 K m˙1= 3.2*105 kg/h…

Q: Sketch these thermodynamic process on a PV diagram

A: For a Carnot cycle Process A-B is an isothermal expansion  Process B-C is an adiabatic expansion…

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A: Yes this cycle can be realised because, if out of two adiabatic curves atleast one is irreversible…

Q: 2. In an irreversible process, there is a (a) loss of heat (b) gain of heat (c) no loss of work (d)…

A: As per the guidelines of BARTLEBY we are subjected to solve only three sub parts of a question.…

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A:

Q: 17. A reversible non-flow, constant volume process decreases internal energy by 316.5 kJ for 2.268…

A: Please find the answer below

Q: A steady-state system for producing power consist of a pump, heat exchanger and a turbine. Water at…

A: To find: The rate of entropy production and thermal efficiency. Given: The pressure at the pump…

Q: nd the rate of entropy production and determine if the cycle operates irreversibly, reverisbly, or…

A: ηcarnot=1-TLTH         =1-4001200ηcarnot=0.667=66.7%  a). Q˙H=600KW   ,   Q˙C=400KW   W˙NET =200KW…

Q: A steady-state system for producing power consist of a pump, heat exchanger and a turbine. Water at…

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Q: True or False An isentropic process is always reversible adiabatic.

A: An isentropic process is always reversible adiabatic since there is no entropy generation in the…

Q: Shown below is P-V diagram for a reversible cycle enclosed by 4 reversible process curves. The curve…

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A: 1. Control volume can transfer heat and mass both. The given statement is false in the question…

Q: Select the Clausius statement of the second law of thermodynamics___________   A. It is impossible…

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A: Introduction: The work done by the close system at constant pressure is due to volume expansion. As…

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A: All the processes in the nature are real processes though we study them as ideal processes.…

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A: All reversible heat engines which are working under the same temperature conditions having the same…

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Q: Thermodynamic Keys Second Law 96. A gas flows through a one-inlet, one-exit control volume operating…

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Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.