1-All actual processes are irreversible A True B False 2-A general statement con
ID: 2074384 • Letter: 1
Question
1-All actual processes are irreversible
A True
B False
2-A general statement consistent with the second law, given in lecture, is that order is more probable than disorder
A True
B False
3-A pot sitting on the counter spontaneously takes heat from the surroundings. This is impossible because
A It is a violation of the first law of thermodynamics
B It is a violation of the second law of thermodynamics
4-In a heat exchanger, the heat transfer always takes place across a finite temperature difference. This common thermodynamic process is
A reversible
B irreversible
Explanation / Answer
Answer-1 True. All actual processes are irreversible. There are some processes which are approximately reversible like compression and expansion of spring or electrolysis but they are not completely reversible in actual scenario.
Answer-2 False. Entropy is defined as disorder and Entropy of universe tends to increase i.e disorder tends to increae hence disorder is more probsble than order
Answer-3 B. It is violation of second law i.e heat heat is transfered without any other effect.
Answer-4 B Irreversible. Counter flow has less irreversibility than parallel flow
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