Verified Solution • 2025–26 Session moderate

QPages 76-77: Q7: HC Verma: Concepts of Physics - Volume 2 Specific Heat Capacities of Gases Pages 76-77: Q7 Solution: The molar heat capacity for the process shown in the figure is

⚠️ Common Exam Traps & Conceptual Pitfalls

Students often treat heat capacity as a fixed property (Cp or Cv) and forget that $C=\frac{\delta Q}{dT}$ is defined for the specific process; for an adiabatic path $\delta Q=0$, so $C=0$ even if $T$ changes. Remember to evaluate $\delta Q$ first, not assume a non‑zero $C$.

The molar heat capacity for the process shown in the figure is

Multiple Choice Options

  • A C = CpC_p
  • B C = CvC_v
  • C C > CvC_v
  • D C = 0.

Step-by-Step Verified Solution

**Answer:** (d) C = 0. **Step-by-Step Explanation:** From the figure, the process is adiabatic (Q = 0), so C = 0.

All Questions in this Chapter

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