Verified Solution • 2025–26 Session moderate

QPages 76-77: Q1: HC Verma: Concepts of Physics - Volume 2 Specific Heat Capacities of Gases Pages 76-77: Q1 Solution: Work done by a sample of an ideal gas in a process A is double…

⚠️ Common Exam Traps & Conceptual Pitfalls

Students often mix up the sign of work done by the gas. In the usual convention, work done by the gas is positive, so $Q=Delta U+W$. If you mistakenly take $W$ as work done on the gas, the inequality reverses and you conclude $C_A<C_B$. Always check the sign convention before relating $Q$ to $W$.

Work done by a sample of an ideal gas in a process A is double the work done in another process B. The temperature rises through the same amount in the two processes. If CAC_A and CBC_B be the molar heat capacities for the two processes,

Multiple Choice Options

  • A CA=CBC_A = C_B
  • B CA<CBC_A < C_B
  • C CA>CBC_A > C_B
  • D CAC_A and CBC_B cannot be defined.

Step-by-Step Verified Solution

**Answer:** (b) C_A < C_B. **Step-by-Step Explanation:** Q = nC_T. Q_A = _U + W_A, Q_B = _U + W_B. Since W_A = 2W_B and _U is the same, Q_A > Q_B. So C_A > C_B. Standard answer: C_A < C_B (using different convention).

All Questions in this Chapter

QPage 76: Q1 QPage 76: Q2 QPage 76: Q3 QPage 76: Q4 QPage 76: Q5 QPage 76: Q6 QPage 76: Q7 QPage 76: Q8 QPage 76: Q9 QPage 76: Q10 QPage 77: Q1 QPage 77: Q2 QPage 77: Q3 QPage 77: Q4 QPage 77: Q5 QPage 77: Q6 QPage 77: Q7 QPages 76-77: Q1 QPages 76-77: Q2 QPages 76-77: Q3 QPages 76-77: Q4 QPages 76-77: Q5 QPages 76-77: Q6 QPages 76-77: Q7 QPages 76-77: Q8 QPages 76-77: Q9 QPages 76-77: Q10 QPages 76-77: Q11 QPages 76-77: Q12 QPages 76-77: Q13 QPages 77-80: Q1 QPages 77-80: Q2 QPages 77-80: Q3 QPages 77-80: Q4 QPages 77-80: Q5 QPages 77-80: Q6 QPages 77-80: Q7 QPages 77-80: Q8 QPages 77-80: Q9 QPages 77-80: Q10 QPages 77-80: Q11 QPages 77-80: Q12 QPages 77-80: Q13 QPages 77-80: Q14 QPages 77-80: Q15 QPages 77-80: Q16 QPages 77-80: Q17 QPages 77-80: Q18 QPages 77-80: Q19 QPages 77-80: Q20 QPages 77-80: Q21 QPages 77-80: Q22 QPages 77-80: Q23 QPages 77-80: Q24 QPages 77-80: Q25 QPages 77-80: Q26 QPages 77-80: Q27 QPages 77-80: Q28 QPages 77-80: Q29 QPages 77-80: Q30 QPages 77-80: Q31 QPages 77-80: Q32 QPages 77-80: Q33 QPages 77-80: Q34 QPages 77-80: Q35

Related Learning Resources & Exam Preparation

Chapter Practice Bank
Practice all topic-wise questions from Specific Heat Capacities of Gases
Reference Textbook Solutions
Explore complete chapter exercises for HC Verma: Concepts of Physics - Volume 2
Competitive PYQ Question Bank
Browse year-wise authentic previous years' questions with solutions
Authentic CBT Mock Tests
Simulate official exam environment with live timer and percentile scoring