alleryStart learning →For an ideal gas, Cp − Cv equals:
- R
- 2R
- R/2
- 0
Show answer and solution
Correct answer: A. R
**Mayer's relation:** Cp - Cv = R (universal gas constant).
This holds exactly for ideal gases.
Indian Navy INET Thermodynamics — practice questions
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Practise Thermodynamics with Quill →Thermodynamics questions and exercises with answers
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Worked practice questions
1 mole of ideal gas (Cv = 3R/2) is heated at constant volume from 300 K to 600 K. Heat absorbed:
- nRT/2
- 900 R
- 300 R
- 450 R
Show answer and solution
Correct answer: D. 450 R
At constant volume: Q = nCvΔT = 1 × (3R/2) × (600 - 300) = 1.5R × 300 = 450R.
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