Question

Properties of substances like pressure, temperature and density, in thermodynamic coordinates are

• A. path function
• B. point function
• C. cyclic function
• D. real function

Answer 1

Answer: (B)

point function

Point Function: They depend on the state only, and not on how a system reaches that state. They are also known as state functions. All properties of a substance are point functions. For example- pressure, temperature and density.

In contrast,

Path function: Their magnitudes depend on the path followed during a process as well as the end states. For example- work done in moving from one point to the other.