Physics Thermodynamics UHS 2024
PMDC Verified Question 11 of 54
What is the value of heat (Q) in an adiabatic process?
A
+1
B
-1
C
0
D
+2
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: 0
1. Concept:

The cornerstone definition of an adiabatic thermodynamic process is absolute thermal isolation from the surrounding environment.

2. Formula:

$$Q = 0$$

3. Solution:

  • In an adiabatic process, the boundary of the system is considered perfectly insulated (like a perfect thermos flask).


  • Because no heat can permeate this boundary, the net heat transfer entering or leaving the system is strictly zero.


  • Consequently, \(Q = 0\).


4. Why other options are incorrect:

Values like +1, -1, or +2 imply a finite, quantifiable heat transfer, which directly contradicts the physical definition of 'adiabatic'.

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