Question Detail

PHY 101 PHY 101 Past Questions Objective Question

Question

Which of the following statements is incorrect?
Options
A In an adiabatic process, heat is transferred into or out of the system
Correct Answer
B Isochoric process has constant volume
C In an isobaric process, ΔP = 0
D For heat exchange, a temperature gradient must exist
Correct Answer

Option A is the correct answer.

Detailed Explanation

The incorrect statement is A. In an adiabatic process, by definition, no heat is transferred into or out of the system (Q = 0). All other statements are correct: isochoric means constant volume, isobaric means constant pressure (ΔP = 0), and heat exchange requires a temperature gradient according to the second law of thermodynamics.

Hint

Remember the definitions of thermodynamic processes: adiabatic means no heat transfer.

Question Info