IGNOU BPHCT 135 2026 - i) What are intensive and extensive variables for thermodynamic system

Question

i) What are intensive and extensive variables for thermodynamic systems? Write two examples of each.
ii) Represent an (a) isobaric (b) isochoric (c) isothermal and (d) a cyclic process on p-V indicator diagram.

19 Jan 2026

Answer :

Word Count : 240

In thermodynamics, system properties are classified as intensive or extensive depending on whether they depend on the amount of matter. Intensive variables are independent of the system’s size or mass and remain constant when the system is divided into parts. Examples include pressure (P), temperature (T), and density (ρ). For

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