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Solution


Q.

Given are statements for certain thermodynamic variables,

(A) Internal energy, volume (V) and mass (M) are extensive variables.

(B) Pressure (P), temperature (T) and density (ρ) are intensive variables.

(C) Volume (V), temperature (T) and density (ρ) are intensive variables.

(D) Mass (M), temperature(T) and internal energy are extensive variables.

Choose the correct answer from the options given below:          [2025]
1 (C) and (D) only  
2 (D) and (A) only  
3 (A) and (B) only  
4 (B) and (C) only  

Ans.

(3)

Extensive variables depend on size and amount of system.

Extensive : Volume, mass, internal energy

Intensive : Pressure, temperature, density