Question

The process where by entropy remains constant is:
(a) reversible process
(b) irreversible process
(c) both (a) and (b)
(d) neither (a) nor (b)​

Answer 1

Answer: ur required answer ;-

Option : A

the process where by entropy remains constant is reversible process .

Explanation:

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Answer 2

Answer

a) Reversible process .

Reason + Explanation

▫️ Energy is not utilised during the reversible process as happens in the case of irreversible process so here no expenditure of energy occurs hence no change will be seen in the entropy of the system.

▫️ In irreversible process case is not similar but the entropy of system keeps on increasing.

▫️This conservative nature of entropy is even stated by the second law of thermodynamics when reversible process taken into consideration.

What is Entropy ?

~ The randomness of the particles present a system is measured by entropy of the system.

~ So entropy can be considered as a measure to figure out the randomness in the particles present.

~It is denoted by S.

~It is basically a point function and do not depends upon the path followed

Now Defining a Reversible process !

• The process which has the similar final and the initial face that is it can be reversed is termed as reversible process.

• Already state and it has a constant entropy

• It can be made two rivers back in the initial forces and vice versa and here is the concept of equilibrium which is not possible in the irreversible process.

• Here the process takes place in very small steps unlike the irreversible process.