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Which of the following variables are cal...

Which of the following variables are called state variables or state functions?

A

`P`

B

`V`

C

`T`

D

All of these

Text Solution

Verified by Experts

The correct Answer is:
D
Variable like `P,V` and `T` are called state variable (or state functions) because their values depend only on the state of the system and not on how it is reached. State functions are very useful because a change in their value depends only on the initial and final states of the system and not on how the change is carried out.
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