Question

In thermodynamic isobaric process

• A. change in internal energy is zero
• B. work done is zero
• C. change in internal energy is not zero
• D. heat supplied is zero

Hint:

Pressure is constant, but temperature and volume change.

Answer 1

The Correct Option is C

Step 1: Constant pressure means:
Volume changes with temperature, $V\propto T$.

Step 2: Temperature changes:
Since $T$ changes, $U=nC_vT$ changes. So $\Delta U\ne0$.

Step 3: Match:
Option (C).

Final Answer:
Temperature changes, so internal energy changes. \[ \boxed{C} \]