Question 214: Thermodynamics & KTG

Question

Given are statements for certain thermodynamic variables,
(A) Internal energy, volume $(\mathrm{V})$ and mass $(\mathrm{M})$ are extensive variables.
(B) Pressure (P), temperature ( T ) and density ( $\rho$ ) are intensive variables.
(C) Volume (V), temperature (T) and density ( $\rho$ ) are intensive variables.
(D) Mass (M), temperature (T) and internal energy are extensive variables.
Choose the correct answer from the options given below :

Accepted Answer

Check Statement (A)
:
Ã¢ÂÂInternal energy (U), volume (V), and mass (M) are extensive variables.Ã¢ÂÂ
Internal energy
is extensive.
Volume
is extensive.
Mass
is extensive.
Hence, statement (A) is
correct
.
Check Statement (B)
:
Ã¢ÂÂPressure (P), temperature (T), and density (ÃÂ) are intensive variables.Ã¢ÂÂ
Pressure
is intensive.
Temperature
is intensive.
Density
is intensive.
Hence, statement (B) is
correct
.
Check Statement (C)
:
Ã¢ÂÂVolume (V), temperature (T), and density (ÃÂ) are intensive variables.Ã¢ÂÂ
Volume
is
not
intensive; it is an extensive property.
(T) and (ÃÂ) are indeed intensive.
Since volume is miscategorized here, (C) is
incorrect
.
Check Statement (D)
:
Ã¢ÂÂMass (M), temperature (T), and internal energy are extensive variables.Ã¢ÂÂ
Mass
is extensive.
Temperature
is
not
extensive (it is intensive).
Internal energy
is extensive.
Because temperature is miscategorized, (D) is
incorrect
.
Only
(A)
and
(B)
are correct statements.
Therefore, the correct choice is:
Option B: (A) and (B) Only.

Answer

(C) and (D) Only

Answer

(A) and (B) Only

Answer

(D) and (A) Only

Answer

(B) and (C) Only

Thermodynamics & KTG

Choose the correct answer: